57955281 has 8 divisors (see below), whose sum is σ = 77458944. Its totient is φ = 38544240.

The previous prime is 57955279. The next prime is 57955291. The reversal of 57955281 is 18255975.

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

It is not a de Polignac number, because 57955281 - 2¹ = 57955279 is a prime.

It is a super-2 number, since 2×57955281² = 6717629191577922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (57955291) 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, 21681 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (9682368).

Almost surely, 2^57955281 is an apocalyptic number.

It is an amenable number.

57955281 is a deficient number, since it is larger than the sum of its proper divisors (19503663).

57955281 is a wasteful number, since it uses less digits than its factorization.

57955281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46311.

The product of its digits is 126000, while the sum is 42.

The square root of 57955281 is about 7612.8365935438. The cubic root of 57955281 is about 386.9881547296.

The spelling of 57955281 in words is "fifty-seven million, nine hundred fifty-five thousand, two hundred eighty-one".