2500780028255 has 32 divisors (see below), whose sum is σ = 3087241703424. Its totient is φ = 1943833081216.

The previous prime is 2500780028167. The next prime is 2500780028273. The reversal of 2500780028255 is 5528200870052.

It is not a de Polignac number, because 2500780028255 - 2²² = 2500775833951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87404162 + ... + 87432768.

It is an arithmetic number, because the mean of its divisors is an integer number (96476303232).

Almost surely, 2^{2500780028255} is an apocalyptic number.

2500780028255 is a deficient number, since it is larger than the sum of its proper divisors (586461675169).

2500780028255 is a wasteful number, since it uses less digits than its factorization.

2500780028255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31855.

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 2500780028255 in words is "two trillion, five hundred billion, seven hundred eighty million, twenty-eight thousand, two hundred fifty-five".