255575040 has 176 divisors, whose sum is σ = 934611072. Its totient is φ = 58392576.

The previous prime is 255575029. The next prime is 255575041. The reversal of 255575040 is 40575552.

It is a junction number, because it is equal to n+sod(n) for n = 255574992 and 255575010.

It is not an unprimeable number, because it can be changed into a prime (255575041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106332 + ... + 108708.

Almost surely, 2^255575040 is an apocalyptic number.

255575040 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 255575040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467305536).

255575040 is an abundant number, since it is smaller than the sum of its proper divisors (679036032).

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

255575040 is a wasteful number, since it uses less digits than its factorization.

255575040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 255575040 is about 15986.7144842210. The cubic root of 255575040 is about 634.6088814309.

The spelling of 255575040 in words is "two hundred fifty-five million, five hundred seventy-five thousand, forty".