57081426 has 8 divisors (see below), whose sum is σ = 114162864. Its totient is φ = 19027140.

The previous prime is 57081419. The next prime is 57081433. The reversal of 57081426 is 62418075.

It is an interprime number because it is at equal distance from previous prime (57081419) and next prime (57081433).

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

57081426 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4756780 + ... + 4756791.

It is an arithmetic number, because the mean of its divisors is an integer number (14270358).

Almost surely, 2^57081426 is an apocalyptic number.

57081426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57081426 is a wasteful number, since it uses less digits than its factorization.

57081426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9513576.

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

The square root of 57081426 is about 7555.2250793739. The cubic root of 57081426 is about 385.0332821062.

The spelling of 57081426 in words is "fifty-seven million, eighty-one thousand, four hundred twenty-six".