6256945081 has 12 divisors (see below), whose sum is σ = 6996480880. Its totient is φ = 5578943040.

The previous prime is 6256945073. The next prime is 6256945127. The reversal of 6256945081 is 1805496526.

It is not a de Polignac number, because 6256945081 - 2³ = 6256945073 is a prime.

It is a super-2 number, since 2×6256945081² = 78298723493300193122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6256945031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564255 + ... + 575236.

Almost surely, 2^6256945081 is an apocalyptic number.

It is an amenable number.

6256945081 is a deficient number, since it is larger than the sum of its proper divisors (739535799).

6256945081 is a wasteful number, since it uses less digits than its factorization.

6256945081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139544 (or 1139527 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 6256945081 is about 79100.8538575912. The cubic root of 6256945081 is about 1842.6977873438.

The spelling of 6256945081 in words is "six billion, two hundred fifty-six million, nine hundred forty-five thousand, eighty-one".