52579980 has 72 divisors (see below), whose sum is σ = 168884352. Its totient is φ = 13195776.

The previous prime is 52579939. The next prime is 52579993. The reversal of 52579980 is 8997525.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5532 + ... + 11651.

It is an arithmetic number, because the mean of its divisors is an integer number (2345616).

Almost surely, 2^52579980 is an apocalyptic number.

It is an amenable number.

52579980 is an abundant number, since it is smaller than the sum of its proper divisors (116304372).

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

52579980 is a wasteful number, since it uses less digits than its factorization.

52579980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17215 (or 17210 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 52579980 is about 7251.2054170324. The cubic root of 52579980 is about 374.6336689206.

The spelling of 52579980 in words is "fifty-two million, five hundred seventy-nine thousand, nine hundred eighty".