255761560 has 32 divisors (see below), whose sum is σ = 576475200. Its totient is φ = 102124800.

The previous prime is 255761543. The next prime is 255761647. The reversal of 255761560 is 65167552.

255761560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18721 + ... + 29359.

It is an arithmetic number, because the mean of its divisors is an integer number (18014850).

Almost surely, 2^255761560 is an apocalyptic number.

255761560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255761560 is an abundant number, since it is smaller than the sum of its proper divisors (320713640).

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

255761560 is a wasteful number, since it uses less digits than its factorization.

255761560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11251 (or 11247 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 255761560 is about 15992.5470141563. The cubic root of 255761560 is about 634.7632241831.

The spelling of 255761560 in words is "two hundred fifty-five million, seven hundred sixty-one thousand, five hundred sixty".