255437520 has 320 divisors, whose sum is σ = 933273600. Its totient is φ = 57231360.

The previous prime is 255437509. The next prime is 255437521. The reversal of 255437520 is 25734552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255437521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1837611 + ... + 1837749.

It is an arithmetic number, because the mean of its divisors is an integer number (2916480).

Almost surely, 2^255437520 is an apocalyptic number.

255437520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255437520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466636800).

255437520 is an abundant number, since it is smaller than the sum of its proper divisors (677836080).

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

255437520 is a wasteful number, since it uses less digits than its factorization.

255437520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 255437520 is about 15982.4128341124. The cubic root of 255437520 is about 634.4950374093.

The spelling of 255437520 in words is "two hundred fifty-five million, four hundred thirty-seven thousand, five hundred twenty".