52611639 has 16 divisors (see below), whose sum is σ = 71688960. Its totient is φ = 34312320.

The previous prime is 52611599. The next prime is 52611641. The reversal of 52611639 is 93611625.

It is a happy number.

52611639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52611639 - 2¹⁶ = 52546103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52611239) 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 15 ways as a sum of consecutive naturals, for example, 28719 + ... + 30495.

It is an arithmetic number, because the mean of its divisors is an integer number (4480560).

Almost surely, 2^52611639 is an apocalyptic number.

52611639 is a deficient number, since it is larger than the sum of its proper divisors (19077321).

52611639 is a wasteful number, since it uses less digits than its factorization.

52611639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990.

The product of its digits is 9720, while the sum is 33.

The square root of 52611639 is about 7253.3881048790. The cubic root of 52611639 is about 374.7088442229.

The spelling of 52611639 in words is "fifty-two million, six hundred eleven thousand, six hundred thirty-nine".