53887131 has 12 divisors (see below), whose sum is σ = 78076440. Its totient is φ = 35814240.

The previous prime is 53887123. The next prime is 53887153. The reversal of 53887131 is 13178835.

It is not a de Polignac number, because 53887131 - 2³ = 53887123 is a prime.

It is a super-2 number, since 2×53887131² = 5807645774822322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53887111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6066 + ... + 12023.

It is an arithmetic number, because the mean of its divisors is an integer number (6506370).

Almost surely, 2^53887131 is an apocalyptic number.

53887131 is a deficient number, since it is larger than the sum of its proper divisors (24189309).

53887131 is a wasteful number, since it uses less digits than its factorization.

53887131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18426 (or 18423 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 53887131 is about 7340.7854484381. The cubic root of 53887131 is about 377.7127867790.

The spelling of 53887131 in words is "fifty-three million, eight hundred eighty-seven thousand, one hundred thirty-one".