25012648775 has 12 divisors (see below), whose sum is σ = 31019124024. Its totient is φ = 20007900000.

The previous prime is 25012648769. The next prime is 25012648789. The reversal of 25012648775 is 57784621052.

It is not a de Polignac number, because 25012648775 - 2⁸ = 25012648519 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 11 ways as a sum of consecutive naturals, for example, 197000 + ... + 298050.

It is an arithmetic number, because the mean of its divisors is an integer number (2584927002).

Almost surely, 2^25012648775 is an apocalyptic number.

25012648775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25012648775 is a deficient number, since it is larger than the sum of its proper divisors (6006475249).

25012648775 is a wasteful number, since it uses less digits than its factorization.

25012648775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110962 (or 110957 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 25012648775 in words is "twenty-five billion, twelve million, six hundred forty-eight thousand, seven hundred seventy-five".