57402681 has 8 divisors (see below), whose sum is σ = 87470784. Its totient is φ = 32801520.

The previous prime is 57402679. The next prime is 57402689. The reversal of 57402681 is 18620475.

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

It is not a de Polignac number, because 57402681 - 2¹ = 57402679 is a prime.

It is a super-2 number, since 2×57402681² = 6590135571975522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57402689) 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, 1366710 + ... + 1366751.

It is an arithmetic number, because the mean of its divisors is an integer number (10933848).

Almost surely, 2^57402681 is an apocalyptic number.

It is an amenable number.

57402681 is a deficient number, since it is larger than the sum of its proper divisors (30068103).

57402681 is a wasteful number, since it uses less digits than its factorization.

57402681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733471.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 57402681 is about 7576.4557017117. The cubic root of 57402681 is about 385.7542553328.

The spelling of 57402681 in words is "fifty-seven million, four hundred two thousand, six hundred eighty-one".