55997512 has 16 divisors (see below), whose sum is σ = 106717500. Its totient is φ = 27539520.

The previous prime is 55997477. The next prime is 55997519. The reversal of 55997512 is 21579955.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46049796 + 9947716 = 6786^2 + 3154^2 .

It is not an unprimeable number, because it can be changed into a prime (55997519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56887 + ... + 57862.

Almost surely, 2^55997512 is an apocalyptic number.

It is an amenable number.

55997512 is a deficient number, since it is larger than the sum of its proper divisors (50719988).

55997512 is a wasteful number, since it uses less digits than its factorization.

55997512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114816 (or 114812 counting only the distinct ones).

The product of its digits is 141750, while the sum is 43.

The square root of 55997512 is about 7483.1485352090. The cubic root of 55997512 is about 382.5805705506.

The spelling of 55997512 in words is "fifty-five million, nine hundred ninety-seven thousand, five hundred twelve".