256025250401 has 8 divisors (see below), whose sum is σ = 269556307680. Its totient is φ = 242499797568.

The previous prime is 256025250373. The next prime is 256025250427. The reversal of 256025250401 is 104052520652.

256025250401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 256025250401 - 2²² = 256021056097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (256025250301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307171 + ... + 1490216.

It is an arithmetic number, because the mean of its divisors is an integer number (33694538460).

Almost surely, 2^256025250401 is an apocalyptic number.

It is an amenable number.

256025250401 is a deficient number, since it is larger than the sum of its proper divisors (13531057279).

256025250401 is a wasteful number, since it uses less digits than its factorization.

256025250401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802223.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 256025250401 in words is "two hundred fifty-six billion, twenty-five million, two hundred fifty thousand, four hundred one".