52621902 has 48 divisors (see below), whose sum is σ = 121305600. Its totient is φ = 16429056.

The previous prime is 52621889. The next prime is 52621903. The reversal of 52621902 is 20912625.

52621902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×52621902³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621903) 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 23 ways as a sum of consecutive naturals, for example, 116974 + ... + 117422.

It is an arithmetic number, because the mean of its divisors is an integer number (2527200).

Almost surely, 2^52621902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52621902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60652800).

52621902 is an abundant number, since it is smaller than the sum of its proper divisors (68683698).

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

52621902 is a wasteful number, since it uses less digits than its factorization.

52621902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 52621902 is about 7254.0955328697. The cubic root of 52621902 is about 374.7332075698.

The spelling of 52621902 in words is "fifty-two million, six hundred twenty-one thousand, nine hundred two".