57265621 has 8 divisors (see below), whose sum is σ = 65557440. Its totient is φ = 49001568.

The previous prime is 57265619. The next prime is 57265627. The reversal of 57265621 is 12656275.

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

It is not a de Polignac number, because 57265621 - 2¹ = 57265619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57265627) 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, 2311 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (8194680).

Almost surely, 2^57265621 is an apocalyptic number.

It is an amenable number.

57265621 is a deficient number, since it is larger than the sum of its proper divisors (8291819).

57265621 is a wasteful number, since it uses less digits than its factorization.

57265621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13883.

The product of its digits is 25200, while the sum is 34.

The square root of 57265621 is about 7567.4051695413. The cubic root of 57265621 is about 385.4469896935.

The spelling of 57265621 in words is "fifty-seven million, two hundred sixty-five thousand, six hundred twenty-one".