52642644 has 12 divisors (see below), whose sum is σ = 122832864. Its totient is φ = 17547544.

The previous prime is 52642633. The next prime is 52642651. The reversal of 52642644 is 44624625.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2193432 + ... + 2193455.

It is an arithmetic number, because the mean of its divisors is an integer number (10236072).

Almost surely, 2^52642644 is an apocalyptic number.

It is an amenable number.

52642644 is an abundant number, since it is smaller than the sum of its proper divisors (70190220).

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

52642644 is a wasteful number, since it uses less digits than its factorization.

52642644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386894 (or 4386892 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 52642644 is about 7255.5250671471. The cubic root of 52642644 is about 374.7824373573.

The spelling of 52642644 in words is "fifty-two million, six hundred forty-two thousand, six hundred forty-four".