252545025 has 24 divisors (see below), whose sum is σ = 418767840. Its totient is φ = 134295040.

The previous prime is 252545023. The next prime is 252545057. The reversal of 252545025 is 520545252.

It is not a de Polignac number, because 252545025 - 2¹ = 252545023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252544983 and 252545001.

It is not an unprimeable number, because it can be changed into a prime (252545023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21706 + ... + 31244.

It is an arithmetic number, because the mean of its divisors is an integer number (17448660).

Almost surely, 2^252545025 is an apocalyptic number.

252545025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252545025 is a deficient number, since it is larger than the sum of its proper divisors (166222815).

252545025 is a wasteful number, since it uses less digits than its factorization.

252545025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905 (or 9900 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 252545025 is about 15891.6652683097. The cubic root of 252545025 is about 632.0909987873.

The spelling of 252545025 in words is "two hundred fifty-two million, five hundred forty-five thousand, twenty-five".