25165945384 has 16 divisors (see below), whose sum is σ = 47530574100. Its totient is φ = 12491125632.

The previous prime is 25165945369. The next prime is 25165945403. The reversal of 25165945384 is 48354956152.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22737624100 + 2428321284 = 150790^2 + 49278^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11479719 + ... + 11481910.

Almost surely, 2^25165945384 is an apocalyptic number.

It is an amenable number.

25165945384 is a deficient number, since it is larger than the sum of its proper divisors (22364628716).

25165945384 is a wasteful number, since it uses less digits than its factorization.

25165945384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961772 (or 22961768 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 52.

The spelling of 25165945384 in words is "twenty-five billion, one hundred sixty-five million, nine hundred forty-five thousand, three hundred eighty-four".