252512777530 has 32 divisors (see below), whose sum is σ = 497510688528. Its totient is φ = 91707033600.

The previous prime is 252512777521. The next prime is 252512777579. The reversal of 252512777530 is 35777215252.

It can be written as a sum of positive squares in 8 ways, for example, as 1372480209 + 251140297321 = 37047^2 + 501139^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15913431 + ... + 15929290.

Almost surely, 2^252512777530 is an apocalyptic number.

252512777530 is a deficient number, since it is larger than the sum of its proper divisors (244997910998).

252512777530 is a wasteful number, since it uses less digits than its factorization.

252512777530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31842802.

The product of its (nonzero) digits is 1029000, while the sum is 46.

The spelling of 252512777530 in words is "two hundred fifty-two billion, five hundred twelve million, seven hundred seventy-seven thousand, five hundred thirty".