57452161 has 8 divisors (see below), whose sum is σ = 64005480. Its totient is φ = 51203712.

The previous prime is 57452149. The next prime is 57452167. The reversal of 57452161 is 16125475.

It can be written as a sum of positive squares in 4 ways, for example, as 12816400 + 44635761 = 3580^2 + 6681^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57452161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57452167) 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, 75820 + ... + 76573.

It is an arithmetic number, because the mean of its divisors is an integer number (8000685).

Almost surely, 2^57452161 is an apocalyptic number.

It is an amenable number.

57452161 is a deficient number, since it is larger than the sum of its proper divisors (6553319).

57452161 is a wasteful number, since it uses less digits than its factorization.

57452161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152435.

The product of its digits is 8400, while the sum is 31.

The square root of 57452161 is about 7579.7203774282. The cubic root of 57452161 is about 385.8650610687.

The spelling of 57452161 in words is "fifty-seven million, four hundred fifty-two thousand, one hundred sixty-one".