25432645683 has 16 divisors (see below), whose sum is σ = 34105300992. Its totient is φ = 16857636000.

The previous prime is 25432645661. The next prime is 25432645691. The reversal of 25432645683 is 38654623452.

It is not a de Polignac number, because 25432645683 - 2⁹ = 25432645171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25432645603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216428 + ... + 1237158.

It is an arithmetic number, because the mean of its divisors is an integer number (2131581312).

Almost surely, 2^25432645683 is an apocalyptic number.

25432645683 is a deficient number, since it is larger than the sum of its proper divisors (8672655309).

25432645683 is a wasteful number, since it uses less digits than its factorization.

25432645683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23066.

The product of its digits is 4147200, while the sum is 48.

The spelling of 25432645683 in words is "twenty-five billion, four hundred thirty-two million, six hundred forty-five thousand, six hundred eighty-three".