25980395433 has 8 divisors (see below), whose sum is σ = 34646671200. Its totient is φ = 17317191648.

The previous prime is 25980395431. The next prime is 25980395443. The reversal of 25980395433 is 33459308952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25980395433 - 2¹ = 25980395431 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25980395431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748188 + ... + 782141.

It is an arithmetic number, because the mean of its divisors is an integer number (4330833900).

Almost surely, 2^25980395433 is an apocalyptic number.

It is an amenable number.

25980395433 is a deficient number, since it is larger than the sum of its proper divisors (8666275767).

25980395433 is a wasteful number, since it uses less digits than its factorization.

25980395433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535991.

The product of its (nonzero) digits is 3499200, while the sum is 51.

The spelling of 25980395433 in words is "twenty-five billion, nine hundred eighty million, three hundred ninety-five thousand, four hundred thirty-three".