52605613 has 4 divisors (see below), whose sum is σ = 52620480. Its totient is φ = 52590748.

The previous prime is 52605611. The next prime is 52605617. The reversal of 52605613 is 31650625.

52605613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52605613 - 2¹ = 52605611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52605611) by changing a digit.

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, 1278 + ... + 10336.

It is an arithmetic number, because the mean of its divisors is an integer number (13155120).

Almost surely, 2^52605613 is an apocalyptic number.

It is an amenable number.

52605613 is a deficient number, since it is larger than the sum of its proper divisors (14867).

52605613 is an equidigital number, since it uses as much as digits as its factorization.

52605613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14866.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 52605613 is about 7252.9727009000. The cubic root of 52605613 is about 374.6945376186.

The spelling of 52605613 in words is "fifty-two million, six hundred five thousand, six hundred thirteen".