25195321233 has 24 divisors (see below), whose sum is σ = 37405541160. Its totient is φ = 16335855360.

The previous prime is 25195321231. The next prime is 25195321247. The reversal of 25195321233 is 33212359152.

It can be written as a sum of positive squares in 4 ways, for example, as 3035128464 + 22160192769 = 55092^2 + 148863^2 .

It is not a de Polignac number, because 25195321233 - 2¹ = 25195321231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25195321231) 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, 208966 + ... + 306687.

It is an arithmetic number, because the mean of its divisors is an integer number (1558564215).

Almost surely, 2^25195321233 is an apocalyptic number.

It is an amenable number.

25195321233 is a deficient number, since it is larger than the sum of its proper divisors (12210219927).

25195321233 is a wasteful number, since it uses less digits than its factorization.

25195321233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515809 (or 515806 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 25195321233 in words is "twenty-five billion, one hundred ninety-five million, three hundred twenty-one thousand, two hundred thirty-three".