57436565 has 16 divisors (see below), whose sum is σ = 69949440. Its totient is φ = 45271680.

The previous prime is 57436537. The next prime is 57436633. The reversal of 57436565 is 56563475.

It is not a de Polignac number, because 57436565 - 2¹⁸ = 57174421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130616 + ... + 131054.

It is an arithmetic number, because the mean of its divisors is an integer number (4371840).

Almost surely, 2^57436565 is an apocalyptic number.

It is an amenable number.

57436565 is a deficient number, since it is larger than the sum of its proper divisors (12512875).

57436565 is a wasteful number, since it uses less digits than its factorization.

57436565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its digits is 378000, while the sum is 41.

The square root of 57436565 is about 7578.6915097529. The cubic root of 57436565 is about 385.8301421843.

The spelling of 57436565 in words is "fifty-seven million, four hundred thirty-six thousand, five hundred sixty-five".