57640485 has 16 divisors (see below), whose sum is σ = 105399936. Its totient is φ = 26349888.

The previous prime is 57640483. The next prime is 57640493. The reversal of 57640485 is 58404675.

It is not a de Polignac number, because 57640485 - 2¹ = 57640483 is a prime.

It is a super-2 number, since 2×57640485² = 6644851022070450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57640481) 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, 274374 + ... + 274583.

It is an arithmetic number, because the mean of its divisors is an integer number (6587496).

Almost surely, 2^57640485 is an apocalyptic number.

It is an amenable number.

57640485 is a deficient number, since it is larger than the sum of its proper divisors (47759451).

57640485 is a wasteful number, since it uses less digits than its factorization.

57640485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548972.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 57640485 is about 7592.1330994655. The cubic root of 57640485 is about 386.2862137577.

The spelling of 57640485 in words is "fifty-seven million, six hundred forty thousand, four hundred eighty-five".