255725901 has 24 divisors (see below), whose sum is σ = 377386776. Its totient is φ = 166807680.

The previous prime is 255725879. The next prime is 255725909. The reversal of 255725901 is 109527552.

It can be written as a sum of positive squares in 4 ways, for example, as 15444900 + 240281001 = 3930^2 + 15501^2 .

It is not a de Polignac number, because 255725901 - 2⁶ = 255725837 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255725909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311071 + ... + 311891.

It is an arithmetic number, because the mean of its divisors is an integer number (15724449).

Almost surely, 2^255725901 is an apocalyptic number.

It is an amenable number.

255725901 is a deficient number, since it is larger than the sum of its proper divisors (121660875).

255725901 is a wasteful number, since it uses less digits than its factorization.

255725901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1530 counting only the distinct ones).

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

The square root of 255725901 is about 15991.4321122281. The cubic root of 255725901 is about 634.7337226507.

The spelling of 255725901 in words is "two hundred fifty-five million, seven hundred twenty-five thousand, nine hundred one".