2559951612 has 108 divisors (see below), whose sum is σ = 6805682520. Its totient is φ = 811267776.

The previous prime is 2559951587. The next prime is 2559951619. The reversal of 2559951612 is 2161599552.

2559951612 is a `hidden beast` number, since 2 + 5 + 599 + 51 + 6 + 1 + 2 = 666.

2559951612 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559951619) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4360783 + ... + 4361369.

Almost surely, 2^2559951612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2559951612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3402841260).

2559951612 is an abundant number, since it is smaller than the sum of its proper divisors (4245730908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2559951612 is a wasteful number, since it uses less digits than its factorization.

2559951612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 844 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 2559951612 is about 50595.9643845238. The cubic root of 2559951612 is about 1367.9721382958.

The spelling of 2559951612 in words is "two billion, five hundred fifty-nine million, nine hundred fifty-one thousand, six hundred twelve".