252525002778 has 12 divisors (see below), whose sum is σ = 547137506058. Its totient is φ = 84175000920.

The previous prime is 252525002777. The next prime is 252525002783. The reversal of 252525002778 is 877200525252.

252525002778 is a `hidden beast` number, since 2 + 5 + 2 + 52 + 500 + 27 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 216004646169 + 36520356609 = 464763^2 + 191103^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (252525002777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7014583393 + ... + 7014583428.

Almost surely, 2^252525002778 is an apocalyptic number.

252525002778 is an abundant number, since it is smaller than the sum of its proper divisors (294612503280).

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

252525002778 is a wasteful number, since it uses less digits than its factorization.

252525002778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029166829 (or 14029166826 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The spelling of 252525002778 in words is "two hundred fifty-two billion, five hundred twenty-five million, two thousand, seven hundred seventy-eight".