25650438267 has 6 divisors (see below), whose sum is σ = 34200954228. Its totient is φ = 17100107244.

The previous prime is 25650438257. The next prime is 25650438271. The reversal of 25650438267 is 76283405652.

It is not a de Polignac number, because 25650438267 - 2⁴ = 25650438251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25650438257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231168 + ... + 323634.

It is an arithmetic number, because the mean of its divisors is an integer number (5700159038).

Almost surely, 2^25650438267 is an apocalyptic number.

25650438267 is a deficient number, since it is larger than the sum of its proper divisors (8550515961).

25650438267 is an frugal number, since it uses more digits than its factorization.

25650438267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184937 (or 92470 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

Multiplying 25650438267 by its sum of digits (48), we get a square (1231221036816 = 1109604²).

The spelling of 25650438267 in words is "twenty-five billion, six hundred fifty million, four hundred thirty-eight thousand, two hundred sixty-seven".