2556016451 has 2 divisors, whose sum is σ = 2556016452. Its totient is φ = 2556016450.

The previous prime is 2556016429. The next prime is 2556016493. The reversal of 2556016451 is 1546106552.

2556016451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2556016451 - 2⁶ = 2556016387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2556016051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278008225 + 1278008226.

It is an arithmetic number, because the mean of its divisors is an integer number (1278008226).

Almost surely, 2^2556016451 is an apocalyptic number.

2556016451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556016451 is an equidigital number, since it uses as much as digits as its factorization.

2556016451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2556016451 is about 50557.0613366719. The cubic root of 2556016451 is about 1367.2708292958.

The spelling of 2556016451 in words is "two billion, five hundred fifty-six million, sixteen thousand, four hundred fifty-one".