53587431 has 12 divisors (see below), whose sum is σ = 77519208. Its totient is φ = 35671824.

The previous prime is 53587427. The next prime is 53587439. The reversal of 53587431 is 13478535.

53587431 is a `hidden beast` number, since 535 + 87 + 43 + 1 = 666.

It is not a de Polignac number, because 53587431 - 2² = 53587427 is a prime.

It is a super-2 number, since 2×53587431² = 5743225522359522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53587439) 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, 2536 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (6459934).

Almost surely, 2^53587431 is an apocalyptic number.

53587431 is a deficient number, since it is larger than the sum of its proper divisors (23931777).

53587431 is a wasteful number, since it uses less digits than its factorization.

53587431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862 (or 8859 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 53587431 is about 7320.3436394749. The cubic root of 53587431 is about 377.0112523524.

The spelling of 53587431 in words is "fifty-three million, five hundred eighty-seven thousand, four hundred thirty-one".