57266897 has 4 divisors (see below), whose sum is σ = 60635556. Its totient is φ = 53898240.

The previous prime is 57266887. The next prime is 57266939. The reversal of 57266897 is 79866275.

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 36917776 + 20349121 = 6076^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 57266897 - 2²⁴ = 40489681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57266857) 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, 1684304 + ... + 1684337.

It is an arithmetic number, because the mean of its divisors is an integer number (15158889).

Almost surely, 2^57266897 is an apocalyptic number.

It is an amenable number.

57266897 is a deficient number, since it is larger than the sum of its proper divisors (3368659).

57266897 is a wasteful number, since it uses less digits than its factorization.

57266897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368658.

The product of its digits is 1270080, while the sum is 50.

The square root of 57266897 is about 7567.4894780237. The cubic root of 57266897 is about 385.4498525321.

The spelling of 57266897 in words is "fifty-seven million, two hundred sixty-six thousand, eight hundred ninety-seven".