57955561 has 8 divisors (see below), whose sum is σ = 60954624. Its totient is φ = 54996480.

The previous prime is 57955531. The next prime is 57955571. The reversal of 57955561 is 16555975.

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 57955561 - 2⁷ = 57955433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57955501) 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, 7000 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (7619328).

Almost surely, 2^57955561 is an apocalyptic number.

It is an amenable number.

57955561 is a deficient number, since it is larger than the sum of its proper divisors (2999063).

57955561 is a wasteful number, since it uses less digits than its factorization.

57955561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19991.

The product of its digits is 236250, while the sum is 43.

The square root of 57955561 is about 7612.8549835131. The cubic root of 57955561 is about 386.9887779487.

The spelling of 57955561 in words is "fifty-seven million, nine hundred fifty-five thousand, five hundred sixty-one".