57247161 has 16 divisors (see below), whose sum is σ = 79885440. Its totient is φ = 36396800.

The previous prime is 57247129. The next prime is 57247181. The reversal of 57247161 is 16174275.

It is a cyclic number.

It is not a de Polignac number, because 57247161 - 2⁵ = 57247129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57247121) 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, 26635 + ... + 28703.

It is an arithmetic number, because the mean of its divisors is an integer number (4992840).

Almost surely, 2^57247161 is an apocalyptic number.

It is an amenable number.

57247161 is a deficient number, since it is larger than the sum of its proper divisors (22638279).

57247161 is a wasteful number, since it uses less digits than its factorization.

57247161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496.

The product of its digits is 11760, while the sum is 33.

The square root of 57247161 is about 7566.1853664842. The cubic root of 57247161 is about 385.4055680050.

The spelling of 57247161 in words is "fifty-seven million, two hundred forty-seven thousand, one hundred sixty-one".