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55448859 = 319972787
BaseRepresentation
bin1101001110000…
…1010100011011
310212100002112110
43103201110123
5103143330414
65300243403
71242210324
oct323412433
9125302473
1055448859
1129332604
12166a0563
13b64559b
14751544b
154d04459
hex34e151b

55448859 has 8 divisors (see below), whose sum is σ = 77823040. Its totient is φ = 35020296.

The previous prime is 55448857. The next prime is 55448867. The reversal of 55448859 is 95884455.

55448859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55448859 - 21 = 55448857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55448857) 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 7 ways as a sum of consecutive naturals, for example, 486337 + ... + 486450.

It is an arithmetic number, because the mean of its divisors is an integer number (9727880).

Almost surely, 255448859 is an apocalyptic number.

55448859 is a deficient number, since it is larger than the sum of its proper divisors (22374181).

55448859 is a wasteful number, since it uses less digits than its factorization.

55448859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972809.

The product of its digits is 1152000, while the sum is 48.

The square root of 55448859 is about 7446.3990626342. The cubic root of 55448859 is about 381.3269835046.

The spelling of 55448859 in words is "fifty-five million, four hundred forty-eight thousand, eight hundred fifty-nine".

Divisors: 1 3 19 57 972787 2918361 18482953 55448859