52642531 has 8 divisors (see below), whose sum is σ = 53329760. Its totient is φ = 51959232.

The previous prime is 52642529. The next prime is 52642543. The reversal of 52642531 is 13524625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52642531 - 2¹ = 52642529 is a prime.

It is a super-2 number, since 2×52642531² = 5542472140171922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52642531.

It is not an unprimeable number, because it can be changed into a prime (52642631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33346 + ... + 34888.

It is an arithmetic number, because the mean of its divisors is an integer number (6666220).

Almost surely, 2^52642531 is an apocalyptic number.

52642531 is a deficient number, since it is larger than the sum of its proper divisors (687229).

52642531 is a wasteful number, since it uses less digits than its factorization.

52642531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its digits is 7200, while the sum is 28.

The square root of 52642531 is about 7255.5172799739. The cubic root of 52642531 is about 374.7821691942.

The spelling of 52642531 in words is "fifty-two million, six hundred forty-two thousand, five hundred thirty-one".