57101881 has 4 divisors (see below), whose sum is σ = 57157264. Its totient is φ = 57046500.

The previous prime is 57101873. The next prime is 57101887. The reversal of 57101881 is 18810175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57101881 - 2³ = 57101873 is a prime.

It is a super-2 number, since 2×57101881² = 6521249627476322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57101887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26115 + ... + 28216.

It is an arithmetic number, because the mean of its divisors is an integer number (14289316).

Almost surely, 2^57101881 is an apocalyptic number.

It is an amenable number.

57101881 is a deficient number, since it is larger than the sum of its proper divisors (55383).

57101881 is a wasteful number, since it uses less digits than its factorization.

57101881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55382.

The product of its (nonzero) digits is 2240, while the sum is 31.

The square root of 57101881 is about 7556.5786570379. The cubic root of 57101881 is about 385.0792685491.

The spelling of 57101881 in words is "fifty-seven million, one hundred one thousand, eight hundred eighty-one".