252615140 has 48 divisors (see below), whose sum is σ = 542868480. Its totient is φ = 98716800.

The previous prime is 252615137. The next prime is 252615149. The reversal of 252615140 is 41516252.

It is not an unprimeable number, because it can be changed into a prime (252615149) 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, 158789 + ... + 160371.

It is an arithmetic number, because the mean of its divisors is an integer number (11309760).

Almost surely, 2^252615140 is an apocalyptic number.

252615140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252615140 is an abundant number, since it is smaller than the sum of its proper divisors (290253340).

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

252615140 is a wasteful number, since it uses less digits than its factorization.

252615140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 252615140 is about 15893.8711458222. The cubic root of 252615140 is about 632.1494899541.

The spelling of 252615140 in words is "two hundred fifty-two million, six hundred fifteen thousand, one hundred forty".