55696512 has 32 divisors (see below), whose sum is σ = 147944880. Its totient is φ = 18565376.

The previous prime is 55696489. The next prime is 55696513. The reversal of 55696512 is 21569655.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×55696512² = 6204202897932288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55696513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72138 + ... + 72905.

Almost surely, 2^55696512 is an apocalyptic number.

It is an amenable number.

55696512 is an abundant number, since it is smaller than the sum of its proper divisors (92248368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55696512 is a wasteful number, since it uses less digits than its factorization.

55696512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145060 (or 145048 counting only the distinct ones).

The product of its digits is 81000, while the sum is 39.

The square root of 55696512 is about 7463.0095805915. The cubic root of 55696512 is about 381.8938513395.

The spelling of 55696512 in words is "fifty-five million, six hundred ninety-six thousand, five hundred twelve".