52490920 has 32 divisors (see below), whose sum is σ = 124322400. Its totient is φ = 19891008.

The previous prime is 52490903. The next prime is 52490923. The reversal of 52490920 is 2909425.

It is not an unprimeable number, because it can be changed into a prime (52490923) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33774 + ... + 35293.

It is an arithmetic number, because the mean of its divisors is an integer number (3885075).

Almost surely, 2^52490920 is an apocalyptic number.

It is an amenable number.

52490920 is an abundant number, since it is smaller than the sum of its proper divisors (71831480).

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

52490920 is a wasteful number, since it uses less digits than its factorization.

52490920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69097 (or 69093 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 52490920 is about 7245.0617664724. The cubic root of 52490920 is about 374.4220311445.

The spelling of 52490920 in words is "fifty-two million, four hundred ninety thousand, nine hundred twenty".