256676250 has 40 divisors (see below), whose sum is σ = 641494656. Its totient is φ = 68446000.

The previous prime is 256676243. The next prime is 256676257. The reversal of 256676250 is 52676652.

256676250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256676243) and next prime (256676257).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 256676199 and 256676208.

It is not an unprimeable number, because it can be changed into a prime (256676257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30474 + ... + 37973.

Almost surely, 2^256676250 is an apocalyptic number.

256676250 is an abundant number, since it is smaller than the sum of its proper divisors (384818406).

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

256676250 is an equidigital number, since it uses as much as digits as its factorization.

256676250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68472 (or 68457 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 256676250 is about 16021.1188747852. The cubic root of 256676250 is about 635.5190333449.

The spelling of 256676250 in words is "two hundred fifty-six million, six hundred seventy-six thousand, two hundred fifty".