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55693497 = 318564499
BaseRepresentation
bin1101010001110…
…1000010111001
310212210112010010
43110131002321
5103224142442
65305412133
71244246466
oct324350271
9125715103
1055693497
112948a392
121679a049
13b6cca42
14757a66d
154d51b9c
hex351d0b9

55693497 has 4 divisors (see below), whose sum is σ = 74258000. Its totient is φ = 37128996.

The previous prime is 55693493. The next prime is 55693501. The reversal of 55693497 is 79439655.

55693497 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 an interprime number because it is at equal distance from previous prime (55693493) and next prime (55693501).

It is not a de Polignac number, because 55693497 - 22 = 55693493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55693493) 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, 9282247 + ... + 9282252.

It is an arithmetic number, because the mean of its divisors is an integer number (18564500).

Almost surely, 255693497 is an apocalyptic number.

It is an amenable number.

55693497 is a deficient number, since it is larger than the sum of its proper divisors (18564503).

55693497 is a wasteful number, since it uses less digits than its factorization.

55693497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18564502.

The product of its digits is 1020600, while the sum is 48.

The square root of 55693497 is about 7462.8075816009. The cubic root of 55693497 is about 381.8869602393.

The spelling of 55693497 in words is "fifty-five million, six hundred ninety-three thousand, four hundred ninety-seven".

Divisors: 1 3 18564499 55693497