52731657 has 24 divisors (see below), whose sum is σ = 85962240. Its totient is φ = 30854880.

The previous prime is 52731647. The next prime is 52731667. The reversal of 52731657 is 75613725.

It is an interprime number because it is at equal distance from previous prime (52731647) and next prime (52731667).

It is not a de Polignac number, because 52731657 - 2¹¹ = 52729609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52731647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6313 + ... + 12054.

It is an arithmetic number, because the mean of its divisors is an integer number (3581760).

Almost surely, 2^52731657 is an apocalyptic number.

It is an amenable number.

52731657 is a deficient number, since it is larger than the sum of its proper divisors (33230583).

52731657 is a wasteful number, since it uses less digits than its factorization.

52731657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18413 (or 18410 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 52731657 is about 7261.6566291722. The cubic root of 52731657 is about 374.9935572226.

The spelling of 52731657 in words is "fifty-two million, seven hundred thirty-one thousand, six hundred fifty-seven".