256725074 has 16 divisors (see below), whose sum is σ = 418433280. Its totient is φ = 117683280.

The previous prime is 256725061. The next prime is 256725101. The reversal of 256725074 is 470527652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 107789 + ... + 110144.

It is an arithmetic number, because the mean of its divisors is an integer number (26152080).

Almost surely, 2^256725074 is an apocalyptic number.

256725074 is a deficient number, since it is larger than the sum of its proper divisors (161708206).

256725074 is a wasteful number, since it uses less digits than its factorization.

256725074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217985.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 256725074 is about 16022.6425411041. The cubic root of 256725074 is about 635.5593261445.

The spelling of 256725074 in words is "two hundred fifty-six million, seven hundred twenty-five thousand, seventy-four".