52489520 has 20 divisors (see below), whose sum is σ = 122038320. Its totient is φ = 20995776.

The previous prime is 52489501. The next prime is 52489529. The reversal of 52489520 is 2598425.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52489529) 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 3 ways as a sum of consecutive naturals, for example, 327980 + ... + 328139.

It is an arithmetic number, because the mean of its divisors is an integer number (6101916).

Almost surely, 2^52489520 is an apocalyptic number.

It is an amenable number.

52489520 is an abundant number, since it is smaller than the sum of its proper divisors (69548800).

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

52489520 is a wasteful number, since it uses less digits than its factorization.

52489520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656132 (or 656126 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 52489520 is about 7244.9651482944. The cubic root of 52489520 is about 374.4187023433.

The spelling of 52489520 in words is "fifty-two million, four hundred eighty-nine thousand, five hundred twenty".