255628520 has 32 divisors (see below), whose sum is σ = 657331200. Its totient is φ = 87643968.

The previous prime is 255628519. The next prime is 255628543. The reversal of 255628520 is 25826552.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456200 + ... + 456759.

It is an arithmetic number, because the mean of its divisors is an integer number (20541600).

Almost surely, 2^255628520 is an apocalyptic number.

255628520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255628520 is an abundant number, since it is smaller than the sum of its proper divisors (401702680).

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

255628520 is a wasteful number, since it uses less digits than its factorization.

255628520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912977 (or 912973 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 255628520 is about 15988.3870355956. The cubic root of 255628520 is about 634.6531430770.

The spelling of 255628520 in words is "two hundred fifty-five million, six hundred twenty-eight thousand, five hundred twenty".