55912057 has 8 divisors (see below), whose sum is σ = 58425984. Its totient is φ = 53405088.

The previous prime is 55912049. The next prime is 55912063. The reversal of 55912057 is 75021955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55912057 - 2³ = 55912049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55912067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21373 + ... + 23845.

It is an arithmetic number, because the mean of its divisors is an integer number (7303248).

Almost surely, 2^55912057 is an apocalyptic number.

It is an amenable number.

55912057 is a deficient number, since it is larger than the sum of its proper divisors (2513927).

55912057 is a wasteful number, since it uses less digits than its factorization.

55912057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55912057 is about 7477.4365259760. The cubic root of 55912057 is about 382.3858591179.

The spelling of 55912057 in words is "fifty-five million, nine hundred twelve thousand, fifty-seven".