252499996180 has 24 divisors (see below), whose sum is σ = 548534475720. Its totient is φ = 97517239680.

The previous prime is 252499996117. The next prime is 252499996211. The reversal of 252499996180 is 81699994252.

It can be written as a sum of positive squares in 4 ways, for example, as 81987159556 + 170512836624 = 286334^2 + 412932^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217671831 + ... + 217672990.

It is an arithmetic number, because the mean of its divisors is an integer number (22855603155).

Almost surely, 2^252499996180 is an apocalyptic number.

252499996180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252499996180 is an abundant number, since it is smaller than the sum of its proper divisors (296034479540).

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

252499996180 is a wasteful number, since it uses less digits than its factorization.

252499996180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435344859 (or 435344857 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 64.

The spelling of 252499996180 in words is "two hundred fifty-two billion, four hundred ninety-nine million, nine hundred ninety-six thousand, one hundred eighty".