25250002775 has 6 divisors (see below), whose sum is σ = 31310003472. Its totient is φ = 20200002200.

The previous prime is 25250002703. The next prime is 25250002787. The reversal of 25250002775 is 57720005252.

It is not a de Polignac number, because 25250002775 - 2¹² = 25249998679 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 5 ways as a sum of consecutive naturals, for example, 505000031 + ... + 505000080.

It is an arithmetic number, because the mean of its divisors is an integer number (5218333912).

Almost surely, 2^25250002775 is an apocalyptic number.

25250002775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25250002775 is a deficient number, since it is larger than the sum of its proper divisors (6060000697).

25250002775 is a wasteful number, since it uses less digits than its factorization.

25250002775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010000121 (or 1010000116 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The spelling of 25250002775 in words is "twenty-five billion, two hundred fifty million, two thousand, seven hundred seventy-five".