2556451051 has 8 divisors (see below), whose sum is σ = 3187263744. Its totient is φ = 1992039720.

The previous prime is 2556451049. The next prime is 2556451091. The reversal of 2556451051 is 1501546552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2556451051 - 2¹ = 2556451049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556450998 and 2556451016.

It is not an unprimeable number, because it can be changed into a prime (2556451091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16600255 + ... + 16600408.

It is an arithmetic number, because the mean of its divisors is an integer number (398407968).

Almost surely, 2^2556451051 is an apocalyptic number.

2556451051 is a deficient number, since it is larger than the sum of its proper divisors (630812693).

2556451051 is a wasteful number, since it uses less digits than its factorization.

2556451051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33200681.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 2556451051 is about 50561.3592677254. The cubic root of 2556451051 is about 1367.3483173505.

The spelling of 2556451051 in words is "two billion, five hundred fifty-six million, four hundred fifty-one thousand, fifty-one".