55973512 has 32 divisors (see below), whose sum is σ = 122212800. Its totient is φ = 23534784.

The previous prime is 55973497. The next prime is 55973521. The reversal of 55973512 is 21537955.

It is a happy number.

It is a super-2 number, since 2×55973512² = 6266068091228288, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6462 + ... + 12397.

It is an arithmetic number, because the mean of its divisors is an integer number (3819150).

Almost surely, 2^55973512 is an apocalyptic number.

It is an amenable number.

55973512 is an abundant number, since it is smaller than the sum of its proper divisors (66239288).

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

55973512 is a wasteful number, since it uses less digits than its factorization.

55973512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18925 (or 18921 counting only the distinct ones).

The product of its digits is 47250, while the sum is 37.

The square root of 55973512 is about 7481.5447602751. The cubic root of 55973512 is about 382.5259059447.

The spelling of 55973512 in words is "fifty-five million, nine hundred seventy-three thousand, five hundred twelve".