2556123416 has 48 divisors (see below), whose sum is σ = 6082066440. Its totient is φ = 995890560.

The previous prime is 2556123389. The next prime is 2556123461. The reversal of 2556123416 is 6143216552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292085 + ... + 300708.

Almost surely, 2^2556123416 is an apocalyptic number.

It is an amenable number.

2556123416 is an abundant number, since it is smaller than the sum of its proper divisors (3525943024).

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

2556123416 is a wasteful number, since it uses less digits than its factorization.

2556123416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592824 (or 592813 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 2556123416 is about 50558.1191897009. The cubic root of 2556123416 is about 1367.2899016932.

Adding to 2556123416 its reverse (6143216552), we get a palindrome (8699339968).

The spelling of 2556123416 in words is "two billion, five hundred fifty-six million, one hundred twenty-three thousand, four hundred sixteen".