57281016 has 32 divisors (see below), whose sum is σ = 154218960. Its totient is φ = 17624832.

The previous prime is 57281009. The next prime is 57281033. The reversal of 57281016 is 61018275.

57281016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57281016² = 6562229587984512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91485 + ... + 92108.

Almost surely, 2^57281016 is an apocalyptic number.

It is an amenable number.

57281016 is an abundant number, since it is smaller than the sum of its proper divisors (96937944).

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

57281016 is a wasteful number, since it uses less digits than its factorization.

57281016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183615 (or 183611 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 57281016 is about 7568.4222926578. The cubic root of 57281016 is about 385.4815271386.

The spelling of 57281016 in words is "fifty-seven million, two hundred eighty-one thousand, sixteen".