52620444 has 36 divisors (see below), whose sum is σ = 134841616. Its totient is φ = 17299008.

The previous prime is 52620439. The next prime is 52620461. The reversal of 52620444 is 44402625.

52620444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×52620444² = 5537822253514272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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 11 ways as a sum of consecutive naturals, for example, 7384 + ... + 12639.

Almost surely, 2^52620444 is an apocalyptic number.

It is an amenable number.

52620444 is an abundant number, since it is smaller than the sum of its proper divisors (82221172).

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

52620444 is a wasteful number, since it uses less digits than its factorization.

52620444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20106 (or 20101 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 52620444 is about 7253.9950372191. The cubic root of 52620444 is about 374.7297466151.

The spelling of 52620444 in words is "fifty-two million, six hundred twenty thousand, four hundred forty-four".