256725898 has 32 divisors (see below), whose sum is σ = 454853952. Its totient is φ = 107136000.

The previous prime is 256725863. The next prime is 256725899. The reversal of 256725898 is 898527652.

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

It is not an unprimeable number, because it can be changed into a prime (256725899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52873 + ... + 57523.

It is an arithmetic number, because the mean of its divisors is an integer number (14214186).

Almost surely, 2^256725898 is an apocalyptic number.

256725898 is a deficient number, since it is larger than the sum of its proper divisors (198128054).

256725898 is a wasteful number, since it uses less digits than its factorization.

256725898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870.

The product of its digits is 2419200, while the sum is 52.

The square root of 256725898 is about 16022.6682546947. The cubic root of 256725898 is about 635.5600061201.

The spelling of 256725898 in words is "two hundred fifty-six million, seven hundred twenty-five thousand, eight hundred ninety-eight".