256250070 has 48 divisors (see below), whose sum is σ = 667931472. Its totient is φ = 68160960.

The previous prime is 256250053. The next prime is 256250089. The reversal of 256250070 is 70052652.

256250070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34509 + ... + 41271.

It is an arithmetic number, because the mean of its divisors is an integer number (13915239).

Almost surely, 2^256250070 is an apocalyptic number.

256250070 is an abundant number, since it is smaller than the sum of its proper divisors (411681402).

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

256250070 is a wasteful number, since it uses less digits than its factorization.

256250070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197 (or 7194 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 256250070 is about 16007.8127800146. The cubic root of 256250070 is about 635.1671042226.

The spelling of 256250070 in words is "two hundred fifty-six million, two hundred fifty thousand, seventy".