52112540 has 12 divisors (see below), whose sum is σ = 109436376. Its totient is φ = 20845008.

The previous prime is 52112527. The next prime is 52112551. The reversal of 52112540 is 4521125.

52112540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2605627 = 52112540 / (5 + 2 + 1 + 1 + 2 + 5 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302794 + ... + 1302833.

It is an arithmetic number, because the mean of its divisors is an integer number (9119698).

Almost surely, 2^52112540 is an apocalyptic number.

It is an amenable number.

52112540 is an abundant number, since it is smaller than the sum of its proper divisors (57323836).

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

52112540 is a wasteful number, since it uses less digits than its factorization.

52112540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605636 (or 2605634 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 52112540 is about 7218.9015784952. The cubic root of 52112540 is about 373.5201888459.

Adding to 52112540 its reverse (4521125), we get a palindrome (56633665).

The spelling of 52112540 in words is "fifty-two million, one hundred twelve thousand, five hundred forty".