57361161 has 16 divisors (see below), whose sum is σ = 89853120. Its totient is φ = 32089920.

The previous prime is 57361147. The next prime is 57361163. The reversal of 57361161 is 16116375.

It is not a de Polignac number, because 57361161 - 2¹⁸ = 57099017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57361163) 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, 66426 + ... + 67283.

It is an arithmetic number, because the mean of its divisors is an integer number (5615820).

Almost surely, 2^57361161 is an apocalyptic number.

It is an amenable number.

57361161 is a deficient number, since it is larger than the sum of its proper divisors (32491959).

57361161 is a wasteful number, since it uses less digits than its factorization.

57361161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133736.

The product of its digits is 3780, while the sum is 30.

The square root of 57361161 is about 7573.7151385565. The cubic root of 57361161 is about 385.6612261131.

The spelling of 57361161 in words is "fifty-seven million, three hundred sixty-one thousand, one hundred sixty-one".