252521580 has 48 divisors (see below), whose sum is σ = 708744960. Its totient is φ = 67178688.

The previous prime is 252521579. The next prime is 252521603. The reversal of 252521580 is 85125252.

252521580 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 (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21547 + ... + 31133.

It is an arithmetic number, because the mean of its divisors is an integer number (14765520).

Almost surely, 2^252521580 is an apocalyptic number.

252521580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252521580 is an abundant number, since it is smaller than the sum of its proper divisors (456223380).

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

252521580 is a wasteful number, since it uses less digits than its factorization.

252521580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038 (or 10036 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 252521580 is about 15890.9276003637. The cubic root of 252521580 is about 632.0714381406.

The spelling of 252521580 in words is "two hundred fifty-two million, five hundred twenty-one thousand, five hundred eighty".