52621912 has 16 divisors (see below), whose sum is σ = 112761360. Its totient is φ = 22552224.

The previous prime is 52621903. The next prime is 52621913. The reversal of 52621912 is 21912625.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469783 + ... + 469894.

It is an arithmetic number, because the mean of its divisors is an integer number (7047585).

Almost surely, 2^52621912 is an apocalyptic number.

It is an amenable number.

52621912 is an abundant number, since it is smaller than the sum of its proper divisors (60139448).

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

52621912 is a wasteful number, since it uses less digits than its factorization.

52621912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939690 (or 939686 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 52621912 is about 7254.0962221355. The cubic root of 52621912 is about 374.7332313073.

The spelling of 52621912 in words is "fifty-two million, six hundred twenty-one thousand, nine hundred twelve".