55757369 has 12 divisors (see below), whose sum is σ = 58393104. Its totient is φ = 53211144.

The previous prime is 55757363. The next prime is 55757389. The reversal of 55757369 is 96375755.

55757369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55757369 - 2¹² = 55753273 is a prime.

It is a super-2 number, since 2×55757369² = 6217768395604322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55757363) 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 11 ways as a sum of consecutive naturals, for example, 94694 + ... + 95280.

It is an arithmetic number, because the mean of its divisors is an integer number (4866092).

Almost surely, 2^55757369 is an apocalyptic number.

It is an amenable number.

55757369 is a deficient number, since it is larger than the sum of its proper divisors (2635735).

55757369 is an equidigital number, since it uses as much as digits as its factorization.

55757369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 677 counting only the distinct ones).

The product of its digits is 992250, while the sum is 47.

The square root of 55757369 is about 7467.0857099674. The cubic root of 55757369 is about 382.0328932870.

The spelling of 55757369 in words is "fifty-five million, seven hundred fifty-seven thousand, three hundred sixty-nine".