25432235292 has 12 divisors (see below), whose sum is σ = 59341882376. Its totient is φ = 8477411760.

The previous prime is 25432235273. The next prime is 25432235293. The reversal of 25432235292 is 29253223452.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 25432235292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25432235293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059676459 + ... + 1059676482.

Almost surely, 2^25432235292 is an apocalyptic number.

It is an amenable number.

25432235292 is an abundant number, since it is smaller than the sum of its proper divisors (33909647084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25432235292 is a wasteful number, since it uses less digits than its factorization.

25432235292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119352948 (or 2119352946 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The spelling of 25432235292 in words is "twenty-five billion, four hundred thirty-two million, two hundred thirty-five thousand, two hundred ninety-two".