255145872 has 40 divisors (see below), whose sum is σ = 680392960. Its totient is φ = 82304640.

The previous prime is 255145871. The next prime is 255145883. The reversal of 255145872 is 278541552.

It is a self number, because there is not a number n which added to its sum of digits gives 255145872.

It is not an unprimeable number, because it can be changed into a prime (255145871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84247 + ... + 87222.

It is an arithmetic number, because the mean of its divisors is an integer number (17009824).

Almost surely, 2^255145872 is an apocalyptic number.

It is an amenable number.

255145872 is an abundant number, since it is smaller than the sum of its proper divisors (425247088).

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

255145872 is a wasteful number, since it uses less digits than its factorization.

255145872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171511 (or 171505 counting only the distinct ones).

The product of its digits is 112000, while the sum is 39.

The square root of 255145872 is about 15973.2861991514. The cubic root of 255145872 is about 634.2534653795.

The spelling of 255145872 in words is "two hundred fifty-five million, one hundred forty-five thousand, eight hundred seventy-two".