255970125 has 84 divisors (see below), whose sum is σ = 488164404. Its totient is φ = 133941600.

The previous prime is 255970103. The next prime is 255970129. The reversal of 255970125 is 521079552.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 34644996 + 221325129 = 5886^2 + 14877^2 .

It is not a de Polignac number, because 255970125 - 2⁷ = 255969997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255970125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255970129) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 4829599 + ... + 4829651.

It is an arithmetic number, because the mean of its divisors is an integer number (5811481).

Almost surely, 2^255970125 is an apocalyptic number.

255970125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255970125 is a deficient number, since it is larger than the sum of its proper divisors (232194279).

255970125 is an frugal number, since it uses more digits than its factorization.

255970125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 255970125 is about 15999.0663790110. The cubic root of 255970125 is about 634.9357200314.

The spelling of 255970125 in words is "two hundred fifty-five million, nine hundred seventy thousand, one hundred twenty-five".