255138696 has 48 divisors (see below), whose sum is σ = 694512000. Its totient is φ = 84614112.

The previous prime is 255138691. The next prime is 255138721. The reversal of 255138696 is 696831552.

255138696 is a `hidden beast` number, since 2 + 551 + 3 + 8 + 6 + 96 = 666.

255138696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255138691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5425 + ... + 23231.

It is an arithmetic number, because the mean of its divisors is an integer number (14469000).

Almost surely, 2^255138696 is an apocalyptic number.

It is an amenable number.

255138696 is an abundant number, since it is smaller than the sum of its proper divisors (439373304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255138696 is a wasteful number, since it uses less digits than its factorization.

255138696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18018 (or 18011 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 255138696 is about 15973.0615725352. The cubic root of 255138696 is about 634.2475191790.

The spelling of 255138696 in words is "two hundred fifty-five million, one hundred thirty-eight thousand, six hundred ninety-six".