5657531 has 16 divisors (see below), whose sum is σ = 6524928. Its totient is φ = 4857600.

The previous prime is 5657513. The next prime is 5657551. The reversal of 5657531 is 1357565.

5657531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5657531 - 2¹⁸ = 5395387 is a prime.

It is a super-2 number, since 2×5657531² = 64015314031922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5657551) 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, 15851 + ... + 16203.

It is an arithmetic number, because the mean of its divisors is an integer number (407808).

Almost surely, 2^5657531 is an apocalyptic number.

5657531 is a deficient number, since it is larger than the sum of its proper divisors (867397).

5657531 is a wasteful number, since it uses less digits than its factorization.

5657531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its digits is 15750, while the sum is 32.

The square root of 5657531 is about 2378.5564950196. The cubic root of 5657531 is about 178.1868487798.

The spelling of 5657531 in words is "five million, six hundred fifty-seven thousand, five hundred thirty-one".