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55882069 = 431299583
BaseRepresentation
bin1101010100101…
…1000101010101
310220011002210021
43111023011111
5103301211234
65313425141
71245663325
oct325130525
9126132707
1055882069
11295a9031
121686b1b1
13b767819
1475c9285
154d8c9b4
hex354b155

55882069 has 4 divisors (see below), whose sum is σ = 57181696. Its totient is φ = 54582444.

The previous prime is 55882063. The next prime is 55882093. The reversal of 55882069 is 96028855.

55882069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55882069 - 225 = 22327637 is a prime.

It is a super-2 number, since 2×558820692 = 6245611271441522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1299583 = 55882069 / (5 + 5 + 8 + 8 + 2 + 0 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55882063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649749 + ... + 649834.

It is an arithmetic number, because the mean of its divisors is an integer number (14295424).

Almost surely, 255882069 is an apocalyptic number.

It is an amenable number.

55882069 is a deficient number, since it is larger than the sum of its proper divisors (1299627).

55882069 is a wasteful number, since it uses less digits than its factorization.

55882069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299626.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 55882069 is about 7475.4310243624. The cubic root of 55882069 is about 382.3174836580.

The spelling of 55882069 in words is "fifty-five million, eight hundred eighty-two thousand, sixty-nine".

Divisors: 1 43 1299583 55882069