52481990 has 32 divisors (see below), whose sum is σ = 108483840. Its totient is φ = 18079200.

The previous prime is 52481983. The next prime is 52482007. The reversal of 52481990 is 9918425.

52481990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 15 ways as a sum of consecutive naturals, for example, 10466 + ... + 14645.

It is an arithmetic number, because the mean of its divisors is an integer number (3390120).

Almost surely, 2^52481990 is an apocalyptic number.

52481990 is an abundant number, since it is smaller than the sum of its proper divisors (56001850).

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

52481990 is a wasteful number, since it uses less digits than its factorization.

52481990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25148.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 52481990 is about 7244.4454584185. The cubic root of 52481990 is about 374.4007971332.

The spelling of 52481990 in words is "fifty-two million, four hundred eighty-one thousand, nine hundred ninety".