252795820518 has 24 divisors (see below), whose sum is σ = 549169475400. Its totient is φ = 84042935424.

The previous prime is 252795820517. The next prime is 252795820523. The reversal of 252795820518 is 815028597252.

252795820518 is a `hidden beast` number, since 2 + 5 + 2 + 7 + 9 + 582 + 0 + 51 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252795820517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18521163 + ... + 18534806.

It is an arithmetic number, because the mean of its divisors is an integer number (22882061475).

Almost surely, 2^252795820518 is an apocalyptic number.

252795820518 is an abundant number, since it is smaller than the sum of its proper divisors (296373654882).

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

252795820518 is a wasteful number, since it uses less digits than its factorization.

252795820518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37056356 (or 37056353 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 252795820518 in words is "two hundred fifty-two billion, seven hundred ninety-five million, eight hundred twenty thousand, five hundred eighteen".