52311624 has 16 divisors (see below), whose sum is σ = 130779120. Its totient is φ = 17437200.

The previous prime is 52311559. The next prime is 52311629. The reversal of 52311624 is 42611325.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2179651 = 52311624 / (5 + 2 + 3 + 1 + 1 + 6 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 52311594 and 52311603.

It is not an unprimeable number, because it can be changed into a prime (52311629) 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, 1089802 + ... + 1089849.

It is an arithmetic number, because the mean of its divisors is an integer number (8173695).

Almost surely, 2^52311624 is an apocalyptic number.

It is an amenable number.

52311624 is an abundant number, since it is smaller than the sum of its proper divisors (78467496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52311624 is a wasteful number, since it uses less digits than its factorization.

52311624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179660 (or 2179656 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 52311624 is about 7232.6775125122. The cubic root of 52311624 is about 373.9952338131.

Adding to 52311624 its reverse (42611325), we get a palindrome (94922949).

The spelling of 52311624 in words is "fifty-two million, three hundred eleven thousand, six hundred twenty-four".