255400250 has 48 divisors (see below), whose sum is σ = 556194600. Its totient is φ = 87561600.

The previous prime is 255400247. The next prime is 255400253. The reversal of 255400250 is 52004552.

It is an interprime number because it is at equal distance from previous prime (255400247) and next prime (255400253).

It can be written as a sum of positive squares in 4 ways, for example, as 138133009 + 117267241 = 11753^2 + 10829^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255400253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1826 + ... + 22674.

Almost surely, 2^255400250 is an apocalyptic number.

255400250 is an abundant number, since it is smaller than the sum of its proper divisors (300794350).

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

255400250 is a wasteful number, since it uses less digits than its factorization.

255400250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20880 (or 20863 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 255400250 is about 15981.2468224479. The cubic root of 255400250 is about 634.4641769204.

The spelling of 255400250 in words is "two hundred fifty-five million, four hundred thousand, two hundred fifty".