52385520 has 80 divisors (see below), whose sum is σ = 177167232. Its totient is φ = 12698880.

The previous prime is 52385507. The next prime is 52385521. The reversal of 52385520 is 2558325.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52385521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7282 + ... + 12561.

Almost surely, 2^52385520 is an apocalyptic number.

It is an amenable number.

52385520 is an abundant number, since it is smaller than the sum of its proper divisors (124781712).

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

52385520 is a wasteful number, since it uses less digits than its factorization.

52385520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19870 (or 19864 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 52385520 is about 7237.7841913116. The cubic root of 52385520 is about 374.1712542751.

The spelling of 52385520 in words is "fifty-two million, three hundred eighty-five thousand, five hundred twenty".