52112613 has 32 divisors (see below), whose sum is σ = 83349504. Its totient is φ = 28337472.

The previous prime is 52112609. The next prime is 52112639. The reversal of 52112613 is 31621125.

It is not a de Polignac number, because 52112613 - 2² = 52112609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52112613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52112663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35806 + ... + 37232.

It is an arithmetic number, because the mean of its divisors is an integer number (2604672).

Almost surely, 2^52112613 is an apocalyptic number.

It is an amenable number.

52112613 is a deficient number, since it is larger than the sum of its proper divisors (31236891).

52112613 is a wasteful number, since it uses less digits than its factorization.

52112613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its digits is 360, while the sum is 21.

The square root of 52112613 is about 7218.9066346643. The cubic root of 52112613 is about 373.5203632567.

Adding to 52112613 its reverse (31621125), we get a palindrome (83733738).

It can be divided in two parts, 52112 and 613, that added together give a palindrome (52725).

The spelling of 52112613 in words is "fifty-two million, one hundred twelve thousand, six hundred thirteen".