57102881 has 8 divisors (see below), whose sum is σ = 65958624. Its totient is φ = 48857920.

The previous prime is 57102821. The next prime is 57102887. The reversal of 57102881 is 18820175.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57102881 - 2¹⁰ = 57101857 is a prime.

It is a super-2 number, since 2×57102881² = 6521478037000322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57102887) 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, 152495 + ... + 152868.

It is an arithmetic number, because the mean of its divisors is an integer number (8244828).

Almost surely, 2^57102881 is an apocalyptic number.

It is an amenable number.

57102881 is a deficient number, since it is larger than the sum of its proper divisors (8855743).

57102881 is a wasteful number, since it uses less digits than its factorization.

57102881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305391.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 57102881 is about 7556.6448242590. The cubic root of 57102881 is about 385.0815164436.

The spelling of 57102881 in words is "fifty-seven million, one hundred two thousand, eight hundred eighty-one".