252781695076 has 9 divisors (see below), whose sum is σ = 442369726099. Its totient is φ = 126390344764.

The previous prime is 252781695071. The next prime is 252781695091. The reversal of 252781695076 is 670596187252.

The square root of 252781695076 is 502774.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252781695076.

It is not an unprimeable number, because it can be changed into a prime (252781695071) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 879855 + ... + 1131241.

Almost surely, 2^252781695076 is an apocalyptic number.

252781695076 is the 502774-th square number.

It is an amenable number.

252781695076 is a deficient number, since it is larger than the sum of its proper divisors (189588031023).

252781695076 is an frugal number, since it uses more digits than its factorization.

252781695076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502778 (or 251389 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 252781695076 in words is "two hundred fifty-two billion, seven hundred eighty-one million, six hundred ninety-five thousand, seventy-six".