252805005025 has 6 divisors (see below), whose sum is σ = 313478206262. Its totient is φ = 202244004000.

The previous prime is 252805004993. The next prime is 252805005031. The reversal of 252805005025 is 520500508252.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4414406481 + 248390598544 = 66441^2 + 498388^2 .

It is not a de Polignac number, because 252805005025 - 2⁵ = 252805004993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5056100076 + ... + 5056100125.

Almost surely, 2^252805005025 is an apocalyptic number.

252805005025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252805005025 is a deficient number, since it is larger than the sum of its proper divisors (60673201237).

252805005025 is a wasteful number, since it uses less digits than its factorization.

252805005025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112200211 (or 10112200206 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

It can be divided in two parts, 25280 and 5005025, that added together give a palindrome (5030305).

The spelling of 252805005025 in words is "two hundred fifty-two billion, eight hundred five million, five thousand, twenty-five".