53788731 has 32 divisors (see below), whose sum is σ = 78236928. Its totient is φ = 32747520.

The previous prime is 53788729. The next prime is 53788741. The reversal of 53788731 is 13788735.

It is not a de Polignac number, because 53788731 - 2¹ = 53788729 is a prime.

It is a super-2 number, since 2×53788731² = 5786455165180722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53788741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410536 + ... + 410666.

It is an arithmetic number, because the mean of its divisors is an integer number (2444904).

Almost surely, 2^53788731 is an apocalyptic number.

53788731 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53788731 is a deficient number, since it is larger than the sum of its proper divisors (24448197).

53788731 is a wasteful number, since it uses less digits than its factorization.

53788731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its digits is 141120, while the sum is 42.

The square root of 53788731 is about 7334.0801059165. The cubic root of 53788731 is about 377.4827406111.

The spelling of 53788731 in words is "fifty-three million, seven hundred eighty-eight thousand, seven hundred thirty-one".