25948965436 has 24 divisors (see below), whose sum is σ = 47280880080. Its totient is φ = 12450518400.

The previous prime is 25948965433. The next prime is 25948965473. The reversal of 25948965436 is 63456984952.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25948965433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286926 + ... + 1306933.

It is an arithmetic number, because the mean of its divisors is an integer number (1970036670).

Almost surely, 2^25948965436 is an apocalyptic number.

It is an amenable number.

25948965436 is a deficient number, since it is larger than the sum of its proper divisors (21331914644).

25948965436 is a wasteful number, since it uses less digits than its factorization.

25948965436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593965 (or 2593963 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 61.

The spelling of 25948965436 in words is "twenty-five billion, nine hundred forty-eight million, nine hundred sixty-five thousand, four hundred thirty-six".