25250002777775 has 48 divisors (see below), whose sum is σ = 32120996624640. Its totient is φ = 19679236416000.

The previous prime is 25250002777757. The next prime is 25250002777789. The reversal of 25250002777775 is 57777720005252.

It is a de Polignac number, because none of the positive numbers 2^k-25250002777775 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25250002777775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2863132316 + ... + 2863141134.

It is an arithmetic number, because the mean of its divisors is an integer number (669187429680).

Almost surely, 2^{25250002777775} is an apocalyptic number.

25250002777775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25250002777775 is a deficient number, since it is larger than the sum of its proper divisors (6870993846865).

25250002777775 is a wasteful number, since it uses less digits than its factorization.

25250002777775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15456 (or 15451 counting only the distinct ones).

The product of its (nonzero) digits is 16807000, while the sum is 56.

The spelling of 25250002777775 in words is "twenty-five trillion, two hundred fifty billion, two million, seven hundred seventy-seven thousand, seven hundred seventy-five".