253257625 has 8 divisors (see below), whose sum is σ = 316065672. Its totient is φ = 202606000.

The previous prime is 253257611. The next prime is 253257629. The reversal of 253257625 is 526752352.

It can be written as a sum of positive squares in 4 ways, for example, as 38576521 + 214681104 = 6211^2 + 14652^2 .

It is not a de Polignac number, because 253257625 - 2¹¹ = 253255577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253257629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012906 + ... + 1013155.

It is an arithmetic number, because the mean of its divisors is an integer number (39508209).

Almost surely, 2^253257625 is an apocalyptic number.

253257625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253257625 is a deficient number, since it is larger than the sum of its proper divisors (62808047).

253257625 is an equidigital number, since it uses as much as digits as its factorization.

253257625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026076 (or 2026066 counting only the distinct ones).

The product of its digits is 126000, while the sum is 37.

The square root of 253257625 is about 15914.0700325215. The cubic root of 253257625 is about 632.6849589531.

The spelling of 253257625 in words is "two hundred fifty-three million, two hundred fifty-seven thousand, six hundred twenty-five".