250131625 has 16 divisors (see below), whose sum is σ = 330529680. Its totient is φ = 188332800.

The previous prime is 250131619. The next prime is 250131631. The reversal of 250131625 is 526131052.

It is an interprime number because it is at equal distance from previous prime (250131619) and next prime (250131631).

It can be written as a sum of positive squares in 8 ways, for example, as 59166864 + 190964761 = 7692^2 + 13819^2 .

It is not a de Polignac number, because 250131625 - 2⁹ = 250131113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 250131625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56730 + ... + 60979.

It is an arithmetic number, because the mean of its divisors is an integer number (20658105).

Almost surely, 2^250131625 is an apocalyptic number.

250131625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250131625 is a deficient number, since it is larger than the sum of its proper divisors (80398055).

250131625 is a wasteful number, since it uses less digits than its factorization.

250131625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117741 (or 117731 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 250131625 is about 15815.5501010872. The cubic root of 250131625 is about 630.0710636223.

Adding to 250131625 its reverse (526131052), we get a palindrome (776262677).

The spelling of 250131625 in words is "two hundred fifty million, one hundred thirty-one thousand, six hundred twenty-five".