252610660 has 24 divisors (see below), whose sum is σ = 537752376. Its totient is φ = 99659520.

The previous prime is 252610651. The next prime is 252610663. The reversal of 252610660 is 66016252.

It can be written as a sum of positive squares in 4 ways, for example, as 32444416 + 220166244 = 5696^2 + 14838^2 .

It is not an unprimeable number, because it can be changed into a prime (252610663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85051 + ... + 87970.

It is an arithmetic number, because the mean of its divisors is an integer number (22406349).

Almost surely, 2^252610660 is an apocalyptic number.

252610660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252610660 is an abundant number, since it is smaller than the sum of its proper divisors (285141716).

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

252610660 is a wasteful number, since it uses less digits than its factorization.

252610660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173103 (or 173101 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 252610660 is about 15893.7302103691. The cubic root of 252610660 is about 632.1457529830.

The spelling of 252610660 in words is "two hundred fifty-two million, six hundred ten thousand, six hundred sixty".