55971592 has 16 divisors (see below), whose sum is σ = 105593040. Its totient is φ = 27813456.

The previous prime is 55971583. The next prime is 55971611. The reversal of 55971592 is 29517955.

It is a happy number.

It is a super-2 number, since 2×55971592² = 6265638222028928, 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 3 ways as a sum of consecutive naturals, for example, 20158 + ... + 22765.

It is an arithmetic number, because the mean of its divisors is an integer number (6599565).

Almost surely, 2^55971592 is an apocalyptic number.

It is an amenable number.

55971592 is a deficient number, since it is larger than the sum of its proper divisors (49621448).

55971592 is a wasteful number, since it uses less digits than its factorization.

55971592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43092 (or 43088 counting only the distinct ones).

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

The square root of 55971592 is about 7481.4164434283. The cubic root of 55971592 is about 382.5215321013.

The spelling of 55971592 in words is "fifty-five million, nine hundred seventy-one thousand, five hundred ninety-two".