2556246607 has 4 divisors (see below), whose sum is σ = 2556348480. Its totient is φ = 2556144736.

The previous prime is 2556246601. The next prime is 2556246629. The reversal of 2556246607 is 7066426552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2556246607 - 2⁷ = 2556246479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556246601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16194 + ... + 73312.

It is an arithmetic number, because the mean of its divisors is an integer number (639087120).

Almost surely, 2^2556246607 is an apocalyptic number.

2556246607 is a deficient number, since it is larger than the sum of its proper divisors (101873).

2556246607 is an equidigital number, since it uses as much as digits as its factorization.

2556246607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101872.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 2556246607 is about 50559.3374857701. The cubic root of 2556246607 is about 1367.3118666087.

The spelling of 2556246607 in words is "two billion, five hundred fifty-six million, two hundred forty-six thousand, six hundred seven".