252502388777 has 2 divisors, whose sum is σ = 252502388778. Its totient is φ = 252502388776.

The previous prime is 252502388741. The next prime is 252502388899. The reversal of 252502388777 is 777883205252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174493340176 + 78009048601 = 417724^2 + 279301^2 .

It is a cyclic number.

It is not a de Polignac number, because 252502388777 - 2²⁴ = 252485611561 is a prime.

It is not a weakly prime, because it can be changed into another prime (252502388707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126251194388 + 126251194389.

It is an arithmetic number, because the mean of its divisors is an integer number (126251194389).

Almost surely, 2^252502388777 is an apocalyptic number.

It is an amenable number.

252502388777 is a deficient number, since it is larger than the sum of its proper divisors (1).

252502388777 is an equidigital number, since it uses as much as digits as its factorization.

252502388777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13171200, while the sum is 56.

The spelling of 252502388777 in words is "two hundred fifty-two billion, five hundred two million, three hundred eighty-eight thousand, seven hundred seventy-seven".