256250106 has 36 divisors (see below), whose sum is σ = 645857082. Its totient is φ = 73214064.

The previous prime is 256250101. The next prime is 256250117. The reversal of 256250106 is 601052652.

256250106 is a `hidden beast` number, since 25 + 625 + 0 + 10 + 6 = 666.

256250106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143784081 + 112466025 = 11991^2 + 10605^2 .

It is a super-2 number, since 2×256250106² = 131328233650022472, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 256250106.

It is not an unprimeable number, because it can be changed into a prime (256250101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 144385 + ... + 146148.

Almost surely, 2^256250106 is an apocalyptic number.

256250106 is an abundant number, since it is smaller than the sum of its proper divisors (389606976).

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

256250106 is a wasteful number, since it uses less digits than its factorization.

256250106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290555 (or 290545 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 256250106 is about 16007.8139044655. The cubic root of 256250106 is about 635.1671339670.

The spelling of 256250106 in words is "two hundred fifty-six million, two hundred fifty thousand, one hundred six".