53157087 has 24 divisors (see below), whose sum is σ = 81595280. Its totient is φ = 34201440.

The previous prime is 53157077. The next prime is 53157107. The reversal of 53157087 is 78075135.

53157087 is a `hidden beast` number, since 5 + 3 + 1 + 570 + 87 = 666.

It is not a de Polignac number, because 53157087 - 2¹⁰ = 53156063 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 (53157017) 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, 21537 + ... + 23877.

Almost surely, 2^53157087 is an apocalyptic number.

53157087 is a deficient number, since it is larger than the sum of its proper divisors (28438193).

53157087 is a wasteful number, since it uses less digits than its factorization.

53157087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 53157087 is about 7290.8906863291. The cubic root of 53157087 is about 375.9993186007. Note that the first 3 decimals are identical.

The spelling of 53157087 in words is "fifty-three million, one hundred fifty-seven thousand, eighty-seven".