57223761 has 16 divisors (see below), whose sum is σ = 87369600. Its totient is φ = 32635008.

The previous prime is 57223753. The next prime is 57223781. The reversal of 57223761 is 16732275.

It is not a de Polignac number, because 57223761 - 2³ = 57223753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57223781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9555 + ... + 14343.

It is an arithmetic number, because the mean of its divisors is an integer number (5460600).

Almost surely, 2^57223761 is an apocalyptic number.

It is an amenable number.

57223761 is a deficient number, since it is larger than the sum of its proper divisors (30145839).

57223761 is a wasteful number, since it uses less digits than its factorization.

57223761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368.

The product of its digits is 17640, while the sum is 33.

The square root of 57223761 is about 7564.6388545654. The cubic root of 57223761 is about 385.3530488397.

The spelling of 57223761 in words is "fifty-seven million, two hundred twenty-three thousand, seven hundred sixty-one".