2551587078 has 16 divisors (see below), whose sum is σ = 5114545200. Its totient is φ = 848633856.

The previous prime is 2551587023. The next prime is 2551587107. The reversal of 2551587078 is 8707851552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470875 + ... + 476262.

It is an arithmetic number, because the mean of its divisors is an integer number (319659075).

Almost surely, 2^2551587078 is an apocalyptic number.

2551587078 is an abundant number, since it is smaller than the sum of its proper divisors (2562958122).

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

2551587078 is a wasteful number, since it uses less digits than its factorization.

2551587078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947591.

The product of its (nonzero) digits is 784000, while the sum is 48.

The square root of 2551587078 is about 50513.2366612950. The cubic root of 2551587078 is about 1366.4805821463.

The spelling of 2551587078 in words is "two billion, five hundred fifty-one million, five hundred eighty-seven thousand, seventy-eight".