256925794 has 8 divisors (see below), whose sum is σ = 408058668. Its totient is φ = 120906240.

The previous prime is 256925741. The next prime is 256925797. The reversal of 256925794 is 497529652.

It can be written as a sum of positive squares in 2 ways, for example, as 225150025 + 31775769 = 15005^2 + 5637^2 .

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

It is not an unprimeable number, because it can be changed into a prime (256925797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3778287 + ... + 3778354.

Almost surely, 2^256925794 is an apocalyptic number.

256925794 is a deficient number, since it is larger than the sum of its proper divisors (151132874).

256925794 is a wasteful number, since it uses less digits than its factorization.

256925794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556660.

The product of its digits is 1360800, while the sum is 49.

The square root of 256925794 is about 16028.9049532399. The cubic root of 256925794 is about 635.7249199368.

The spelling of 256925794 in words is "two hundred fifty-six million, nine hundred twenty-five thousand, seven hundred ninety-four".