256457325053 has 8 divisors (see below), whose sum is σ = 260965266240. Its totient is φ = 251987425920.

The previous prime is 256457325043. The next prime is 256457325097. The reversal of 256457325053 is 350523754652.

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 256457325053 - 2⁶ = 256457324989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256457324989 and 256457325007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256457325043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9496913 + ... + 9523878.

It is an arithmetic number, because the mean of its divisors is an integer number (32620658280).

Almost surely, 2^256457325053 is an apocalyptic number.

It is an amenable number.

256457325053 is a deficient number, since it is larger than the sum of its proper divisors (4507941187).

256457325053 is a wasteful number, since it uses less digits than its factorization.

256457325053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19021027.

The product of its (nonzero) digits is 3780000, while the sum is 47.

The spelling of 256457325053 in words is "two hundred fifty-six billion, four hundred fifty-seven million, three hundred twenty-five thousand, fifty-three".