53928531 has 16 divisors (see below), whose sum is σ = 80991520. Its totient is φ = 35458560.

The previous prime is 53928509. The next prime is 53928551. The reversal of 53928531 is 13582935.

It is not a de Polignac number, because 53928531 - 2¹⁴ = 53912147 is a prime.

It is a super-2 number, since 2×53928531² = 5816572911635922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53928551) 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, 11710 + ... + 15651.

It is an arithmetic number, because the mean of its divisors is an integer number (5061970).

Almost surely, 2^53928531 is an apocalyptic number.

53928531 is a deficient number, since it is larger than the sum of its proper divisors (27062989).

53928531 is a wasteful number, since it uses less digits than its factorization.

53928531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27443 (or 27437 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 53928531 is about 7343.6047687767. The cubic root of 53928531 is about 377.8094907986.

The spelling of 53928531 in words is "fifty-three million, nine hundred twenty-eight thousand, five hundred thirty-one".