255225726 has 144 divisors (see below), whose sum is σ = 691177344. Its totient is φ = 66624768.

The previous prime is 255225679. The next prime is 255225731. The reversal of 255225726 is 627522552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1565721 + ... + 1565883.

Almost surely, 2^255225726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255225726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345588672).

255225726 is an abundant number, since it is smaller than the sum of its proper divisors (435951618).

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

255225726 is a wasteful number, since it uses less digits than its factorization.

255225726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 235 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 255225726 is about 15975.7856144854. The cubic root of 255225726 is about 634.3196267391.

The spelling of 255225726 in words is "two hundred fifty-five million, two hundred twenty-five thousand, seven hundred twenty-six".