2556578304001 has 4 divisors (see below), whose sum is σ = 2639048571904. Its totient is φ = 2474108036100.

The previous prime is 2556578303987. The next prime is 2556578304013. The reversal of 2556578304001 is 1004038756552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2556578304001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556578304101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41235133905 + ... + 41235133966.

It is an arithmetic number, because the mean of its divisors is an integer number (659762142976).

Almost surely, 2^{2556578304001} is an apocalyptic number.

It is an amenable number.

2556578304001 is a deficient number, since it is larger than the sum of its proper divisors (82470267903).

2556578304001 is an equidigital number, since it uses as much as digits as its factorization.

2556578304001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82470267902.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 2556578304001 in words is "two trillion, five hundred fifty-six billion, five hundred seventy-eight million, three hundred four thousand, one".