256251038 has 8 divisors (see below), whose sum is σ = 385765032. Its totient is φ = 127662696.

The previous prime is 256251031. The next prime is 256251049. The reversal of 256251038 is 830152652.

256251038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 256250995 and 256251013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256251031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230720 + ... + 231827.

It is an arithmetic number, because the mean of its divisors is an integer number (48220629).

Almost surely, 2^256251038 is an apocalyptic number.

256251038 is a deficient number, since it is larger than the sum of its proper divisors (129513994).

256251038 is a wasteful number, since it uses less digits than its factorization.

256251038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462826.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 256251038 is about 16007.8430152223. The cubic root of 256251038 is about 635.1679040155.

The spelling of 256251038 in words is "two hundred fifty-six million, two hundred fifty-one thousand, thirty-eight".