25505375967 has 24 divisors (see below), whose sum is σ = 38119302000. Its totient is φ = 16413884928.

The previous prime is 25505375963. The next prime is 25505375969. The reversal of 25505375967 is 76957350552.

25505375967 is a `hidden beast` number, since 2 + 5 + 50 + 537 + 59 + 6 + 7 = 666.

It is not a de Polignac number, because 25505375967 - 2² = 25505375963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25505375963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2174284 + ... + 2185982.

It is an arithmetic number, because the mean of its divisors is an integer number (1588304250).

Almost surely, 2^25505375967 is an apocalyptic number.

25505375967 is a deficient number, since it is larger than the sum of its proper divisors (12613926033).

25505375967 is a wasteful number, since it uses less digits than its factorization.

25505375967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20087 (or 20084 counting only the distinct ones).

The product of its (nonzero) digits is 9922500, while the sum is 54.

The spelling of 25505375967 in words is "twenty-five billion, five hundred five million, three hundred seventy-five thousand, nine hundred sixty-seven".