52531869 has 8 divisors (see below), whose sum is σ = 75430432. Its totient is φ = 32327280.

The previous prime is 52531861. The next prime is 52531901. The reversal of 52531869 is 96813525.

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

It is not a de Polignac number, because 52531869 - 2³ = 52531861 is a prime.

It is a super-2 number, since 2×52531869² = 5519194521266322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1346971 = 52531869 / (5 + 2 + 5 + 3 + 1 + 8 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52531861) 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, 673447 + ... + 673524.

It is an arithmetic number, because the mean of its divisors is an integer number (9428804).

Almost surely, 2^52531869 is an apocalyptic number.

It is an amenable number.

52531869 is a deficient number, since it is larger than the sum of its proper divisors (22898563).

52531869 is a wasteful number, since it uses less digits than its factorization.

52531869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346987.

The product of its digits is 64800, while the sum is 39.

The square root of 52531869 is about 7247.8872093873. The cubic root of 52531869 is about 374.5193700272.

The spelling of 52531869 in words is "fifty-two million, five hundred thirty-one thousand, eight hundred sixty-nine".