255193077925 has 24 divisors (see below), whose sum is σ = 335187812232. Its totient is φ = 192068352000.

The previous prime is 255193077917. The next prime is 255193077947. The reversal of 255193077925 is 529770391552.

It can be written as a sum of positive squares in 12 ways, for example, as 99516273444 + 155676804481 = 315462^2 + 394559^2 .

It is not a de Polignac number, because 255193077925 - 2³ = 255193077917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 952335 + ... + 1190515.

It is an arithmetic number, because the mean of its divisors is an integer number (13966158843).

Almost surely, 2^255193077925 is an apocalyptic number.

255193077925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255193077925 is a deficient number, since it is larger than the sum of its proper divisors (79994734307).

255193077925 is a wasteful number, since it uses less digits than its factorization.

255193077925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240729 (or 240724 counting only the distinct ones).

The product of its (nonzero) digits is 5953500, while the sum is 55.

The spelling of 255193077925 in words is "two hundred fifty-five billion, one hundred ninety-three million, seventy-seven thousand, nine hundred twenty-five".