255131125 has 16 divisors (see below), whose sum is σ = 329387760. Its totient is φ = 197064000.

The previous prime is 255131119. The next prime is 255131137. The reversal of 255131125 is 521131552.

It can be written as a sum of positive squares in 8 ways, for example, as 103693489 + 151437636 = 10183^2 + 12306^2 .

It is not a de Polignac number, because 255131125 - 2³ = 255131117 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 255131125.

It is a congruent number.

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, 31566 + ... + 38815.

It is an arithmetic number, because the mean of its divisors is an integer number (20586735).

Almost surely, 2^255131125 is an apocalyptic number.

255131125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255131125 is a deficient number, since it is larger than the sum of its proper divisors (74256635).

255131125 is an equidigital number, since it uses as much as digits as its factorization.

255131125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70425 (or 70415 counting only the distinct ones).

The product of its digits is 1500, while the sum is 25.

The square root of 255131125 is about 15972.8245780137. The cubic root of 255131125 is about 634.2412455515.

Adding to 255131125 its reverse (521131552), we get a palindrome (776262677).

The spelling of 255131125 in words is "two hundred fifty-five million, one hundred thirty-one thousand, one hundred twenty-five".