255524490720 has 72 divisors (see below), whose sum is σ = 871977329496. Its totient is φ = 68139863808.

The previous prime is 255524490713. The next prime is 255524490737. The reversal of 255524490720 is 27094425552.

255524490720 is a `hidden beast` number, since 2 + 5 + 552 + 4 + 4 + 90 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×255524490720² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88722342 + ... + 88725221.

It is an arithmetic number, because the mean of its divisors is an integer number (12110796243).

Almost surely, 2^255524490720 is an apocalyptic number.

255524490720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255524490720 is an abundant number, since it is smaller than the sum of its proper divisors (616452838776).

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

255524490720 is a wasteful number, since it uses less digits than its factorization.

255524490720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177447584 (or 177447573 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 255524490720 in words is "two hundred fifty-five billion, five hundred twenty-four million, four hundred ninety thousand, seven hundred twenty".