2551456782 has 48 divisors (see below), whose sum is σ = 6437115360. Its totient is φ = 715231296.

The previous prime is 2551456771. The next prime is 2551456811. The reversal of 2551456782 is 2876541552.

2551456782 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 4 + 567 + 82 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184357 + ... + 197712.

It is an arithmetic number, because the mean of its divisors is an integer number (134106570).

Almost surely, 2^2551456782 is an apocalyptic number.

2551456782 is an abundant number, since it is smaller than the sum of its proper divisors (3885658578).

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

2551456782 is a wasteful number, since it uses less digits than its factorization.

2551456782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382137 (or 382134 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 2551456782 is about 50511.9469234754. The cubic root of 2551456782 is about 1366.4573221152.

The spelling of 2551456782 in words is "two billion, five hundred fifty-one million, four hundred fifty-six thousand, seven hundred eighty-two".