252669425 has 12 divisors (see below), whose sum is σ = 317604300. Its totient is φ = 199365120.

The previous prime is 252669409. The next prime is 252669427. The reversal of 252669425 is 524966252.

It can be written as a sum of positive squares in 6 ways, for example, as 4669921 + 247999504 = 2161^2 + 15748^2 .

It is not a de Polignac number, because 252669425 - 2⁴ = 252669409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252669427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67400 + ... + 71049.

It is an arithmetic number, because the mean of its divisors is an integer number (26467025).

Almost surely, 2^252669425 is an apocalyptic number.

252669425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252669425 is a deficient number, since it is larger than the sum of its proper divisors (64934875).

252669425 is a wasteful number, since it uses less digits than its factorization.

252669425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138532 (or 138527 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 252669425 is about 15895.5787878265. The cubic root of 252669425 is about 632.1947680232.

The spelling of 252669425 in words is "two hundred fifty-two million, six hundred sixty-nine thousand, four hundred twenty-five".