255696090 has 64 divisors (see below), whose sum is σ = 677037312. Its totient is φ = 61401600.

The previous prime is 255696019. The next prime is 255696101. The reversal of 255696090 is 90696552.

255696090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7995 + ... + 23985.

It is an arithmetic number, because the mean of its divisors is an integer number (10578708).

Almost surely, 2^255696090 is an apocalyptic number.

It is a pronic number, being equal to 15990×15991.

It is a practical number, because each smaller number is the sum of distinct divisors of 255696090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338518656).

255696090 is an abundant number, since it is smaller than the sum of its proper divisors (421341222).

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

255696090 is a wasteful number, since it uses less digits than its factorization.

255696090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16055.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 255696090 is about 15990.4999921829. The cubic root of 255696090 is about 634.7090572019.

The spelling of 255696090 in words is "two hundred fifty-five million, six hundred ninety-six thousand, ninety".