25468439432 has 36 divisors (see below), whose sum is σ = 50742868005. Its totient is φ = 11981536896.

The previous prime is 25468439417. The next prime is 25468439501. The reversal of 25468439432 is 23493486452.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 23309350276 + 2159089156 = 152674^2 + 46466^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112846.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7671869 + ... + 7675187.

Almost surely, 2^25468439432 is an apocalyptic number.

It is an amenable number.

25468439432 is a deficient number, since it is larger than the sum of its proper divisors (25274428573).

25468439432 is an frugal number, since it uses more digits than its factorization.

25468439432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678 (or 3338 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 50.

Multiplying 25468439432 by its sum of digits (50), we get a square (1273421971600 = 1128460²).

The spelling of 25468439432 in words is "twenty-five billion, four hundred sixty-eight million, four hundred thirty-nine thousand, four hundred thirty-two".