52431637 has 4 divisors (see below), whose sum is σ = 52505280. Its totient is φ = 52357996.

The previous prime is 52431557. The next prime is 52431647. The reversal of 52431637 is 73613425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52431637 - 2¹¹ = 52429589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52431599 and 52431608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52431647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35743 + ... + 37180.

It is an arithmetic number, because the mean of its divisors is an integer number (13126320).

Almost surely, 2^52431637 is an apocalyptic number.

It is an amenable number.

52431637 is a deficient number, since it is larger than the sum of its proper divisors (73643).

52431637 is an equidigital number, since it uses as much as digits as its factorization.

52431637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73642.

The product of its digits is 15120, while the sum is 31.

The square root of 52431637 is about 7240.9693411863. The cubic root of 52431637 is about 374.2810212145.

The spelling of 52431637 in words is "fifty-two million, four hundred thirty-one thousand, six hundred thirty-seven".