52345631 has 8 divisors (see below), whose sum is σ = 58823520. Its totient is φ = 46217952.

The previous prime is 52345613. The next prime is 52345681. The reversal of 52345631 is 13654325.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52345631 is a prime.

It is a super-2 number, since 2×52345631² = 5480130169576322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52345594 and 52345603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52345681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87236 + ... + 87833.

It is an arithmetic number, because the mean of its divisors is an integer number (7352940).

Almost surely, 2^52345631 is an apocalyptic number.

52345631 is a deficient number, since it is larger than the sum of its proper divisors (6477889).

52345631 is a wasteful number, since it uses less digits than its factorization.

52345631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175105.

The product of its digits is 10800, while the sum is 29.

The square root of 52345631 is about 7235.0280579967. The cubic root of 52345631 is about 374.0762591500.

Adding to 52345631 its reverse (13654325), we get a palindrome (65999956).

The spelling of 52345631 in words is "fifty-two million, three hundred forty-five thousand, six hundred thirty-one".