255451320 has 192 divisors, whose sum is σ = 883340640. Its totient is φ = 66355200.

The previous prime is 255451307. The next prime is 255451327. The reversal of 255451320 is 23154552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255451327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 398200 + ... + 398840.

Almost surely, 2^255451320 is an apocalyptic number.

255451320 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 255451320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441670320).

255451320 is an abundant number, since it is smaller than the sum of its proper divisors (627889320).

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

255451320 is a wasteful number, since it uses less digits than its factorization.

255451320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 255451320 is about 15982.8445528323. The cubic root of 255451320 is about 634.5064633917.

The spelling of 255451320 in words is "two hundred fifty-five million, four hundred fifty-one thousand, three hundred twenty".