252780025 has 24 divisors (see below), whose sum is σ = 320336640. Its totient is φ = 197831040.

The previous prime is 252780019. The next prime is 252780043. The reversal of 252780025 is 520087252.

It is not a de Polignac number, because 252780025 - 2⁷ = 252779897 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228624 + ... + 229726.

It is an arithmetic number, because the mean of its divisors is an integer number (13347360).

Almost surely, 2^252780025 is an apocalyptic number.

252780025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252780025 is a deficient number, since it is larger than the sum of its proper divisors (67556615).

252780025 is a wasteful number, since it uses less digits than its factorization.

252780025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 252780025 is about 15899.0573619948. The cubic root of 252780025 is about 632.2869972825.

The spelling of 252780025 in words is "two hundred fifty-two million, seven hundred eighty thousand, twenty-five".