255670992 has 120 divisors (see below), whose sum is σ = 781304160. Its totient is φ = 80714880.

The previous prime is 255670963. The next prime is 255671027. The reversal of 255670992 is 299076552.

255670992 is a `hidden beast` number, since 2 + 556 + 7 + 0 + 9 + 92 = 666.

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, 72142 + ... + 75602.

It is an arithmetic number, because the mean of its divisors is an integer number (6510868).

Almost surely, 2^255670992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255670992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390652080).

255670992 is an abundant number, since it is smaller than the sum of its proper divisors (525633168).

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

255670992 is a wasteful number, since it uses less digits than its factorization.

255670992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503 (or 3485 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 255670992 is about 15989.7151944617. The cubic root of 255670992 is about 634.6882897756.

It can be divided in two parts, 2556709 and 92, that added together give a square (2556801 = 1599²).

The spelling of 255670992 in words is "two hundred fifty-five million, six hundred seventy thousand, nine hundred ninety-two".