52631329 has 4 divisors (see below), whose sum is σ = 52647300. Its totient is φ = 52615360.

The previous prime is 52631261. The next prime is 52631339. The reversal of 52631329 is 92313625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29811600 + 22819729 = 5460^2 + 4777^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52631329 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 52631329.

It is not an unprimeable number, because it can be changed into a prime (52631339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012 + ... + 10309.

It is an arithmetic number, because the mean of its divisors is an integer number (13161825).

Almost surely, 2^52631329 is an apocalyptic number.

It is an amenable number.

52631329 is a deficient number, since it is larger than the sum of its proper divisors (15971).

52631329 is a wasteful number, since it uses less digits than its factorization.

52631329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15970.

The product of its digits is 9720, while the sum is 31.

The square root of 52631329 is about 7254.7452746461. The cubic root of 52631329 is about 374.7555835443.

The spelling of 52631329 in words is "fifty-two million, six hundred thirty-one thousand, three hundred twenty-nine".