255425725 has 6 divisors (see below), whose sum is σ = 316727930. Its totient is φ = 204340560.

The previous prime is 255425717. The next prime is 255425747. The reversal of 255425725 is 527524552.

It can be written as a sum of positive squares in 3 ways, for example, as 257049 + 255168676 = 507^2 + 15974^2 .

It is not a de Polignac number, because 255425725 - 2³ = 255425717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5108490 + ... + 5108539.

Almost surely, 2^255425725 is an apocalyptic number.

255425725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255425725 is a deficient number, since it is larger than the sum of its proper divisors (61302205).

255425725 is a wasteful number, since it uses less digits than its factorization.

255425725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217039 (or 10217034 counting only the distinct ones).

The product of its digits is 140000, while the sum is 37.

The square root of 255425725 is about 15982.0438304993. The cubic root of 255425725 is about 634.4852711800.

The spelling of 255425725 in words is "two hundred fifty-five million, four hundred twenty-five thousand, seven hundred twenty-five".