2559487851 has 12 divisors (see below), whose sum is σ = 3697478928. Its totient is φ = 1706121744.

The previous prime is 2559487831. The next prime is 2559487867. The reversal of 2559487851 is 1587849552.

2559487851 is a `hidden beast` number, since 2 + 559 + 4 + 8 + 7 + 85 + 1 = 666.

It is not a de Polignac number, because 2559487851 - 2¹⁵ = 2559455083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2559487811) 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, 127186 + ... + 145928.

It is an arithmetic number, because the mean of its divisors is an integer number (308123244).

Almost surely, 2^2559487851 is an apocalyptic number.

2559487851 is a deficient number, since it is larger than the sum of its proper divisors (1137991077).

2559487851 is a wasteful number, since it uses less digits than its factorization.

2559487851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33922 (or 33919 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 54.

The square root of 2559487851 is about 50591.3811928475. The cubic root of 2559487851 is about 1367.8895259998.

The spelling of 2559487851 in words is "two billion, five hundred fifty-nine million, four hundred eighty-seven thousand, eight hundred fifty-one".