256357545755 has 8 divisors (see below), whose sum is σ = 307828434912. Its totient is φ = 204953116608.

The previous prime is 256357545721. The next prime is 256357545841. The reversal of 256357545755 is 557545753652.

It is a happy number.

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 256357545755 - 2¹⁴ = 256357529371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256357545694 and 256357545703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16606514 + ... + 16621943.

It is an arithmetic number, because the mean of its divisors is an integer number (38478554364).

Almost surely, 2^256357545755 is an apocalyptic number.

256357545755 is a deficient number, since it is larger than the sum of its proper divisors (51470889157).

256357545755 is a wasteful number, since it uses less digits than its factorization.

256357545755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33230005.

The product of its digits is 110250000, while the sum is 59.

The spelling of 256357545755 in words is "two hundred fifty-six billion, three hundred fifty-seven million, five hundred forty-five thousand, seven hundred fifty-five".