52881731 has 24 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 42339024.

The previous prime is 52881709. The next prime is 52881733. The reversal of 52881731 is 13718825.

52881731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52881731 - 2⁶ = 52881667 is a prime.

It is a super-2 number, since 2×52881731² = 5592954947112722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52881691 and 52881700.

It is not an unprimeable number, because it can be changed into a prime (52881733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73190 + ... + 73908.

It is an arithmetic number, because the mean of its divisors is an integer number (2736000).

Almost surely, 2^52881731 is an apocalyptic number.

52881731 is a deficient number, since it is larger than the sum of its proper divisors (12782269).

52881731 is a wasteful number, since it uses less digits than its factorization.

52881731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 824 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 52881731 is about 7271.9826044896. The cubic root of 52881731 is about 375.3489634609.

The spelling of 52881731 in words is "fifty-two million, eight hundred eighty-one thousand, seven hundred thirty-one".