57497161 has 4 divisors (see below), whose sum is σ = 57681172. Its totient is φ = 57313152.

The previous prime is 57497123. The next prime is 57497183. The reversal of 57497161 is 16179475.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 585225 + 56911936 = 765^2 + 7544^2 .

It is a cyclic number.

It is not a de Polignac number, because 57497161 - 2¹³ = 57488969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57497101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91536 + ... + 92161.

It is an arithmetic number, because the mean of its divisors is an integer number (14420293).

Almost surely, 2^57497161 is an apocalyptic number.

It is an amenable number.

57497161 is a deficient number, since it is larger than the sum of its proper divisors (184011).

57497161 is a wasteful number, since it uses less digits than its factorization.

57497161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184010.

The product of its digits is 52920, while the sum is 40.

The square root of 57497161 is about 7582.6882436244. The cubic root of 57497161 is about 385.9657790454.

The spelling of 57497161 in words is "fifty-seven million, four hundred ninety-seven thousand, one hundred sixty-one".