52615444 has 24 divisors (see below), whose sum is σ = 109807488. Its totient is φ = 21568800.

The previous prime is 52615441. The next prime is 52615447. The reversal of 52615444 is 44451625.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52615441) and next prime (52615447).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52615441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40207 + ... + 41494.

It is an arithmetic number, because the mean of its divisors is an integer number (4575312).

Almost surely, 2^52615444 is an apocalyptic number.

It is an amenable number.

52615444 is an abundant number, since it is smaller than the sum of its proper divisors (57192044).

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

52615444 is a wasteful number, since it uses less digits than its factorization.

52615444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81735 (or 81733 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 52615444 is about 7253.6503913547. The cubic root of 52615444 is about 374.7178772861.

The spelling of 52615444 in words is "fifty-two million, six hundred fifteen thousand, four hundred forty-four".