25243442364 has 48 divisors (see below), whose sum is σ = 68419398656. Its totient is φ = 7094174400.

The previous prime is 25243442359. The next prime is 25243442377. The reversal of 25243442364 is 46324434252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2458132 + ... + 2468379.

Almost surely, 2^25243442364 is an apocalyptic number.

It is an amenable number.

25243442364 is an abundant number, since it is smaller than the sum of its proper divisors (43175956292).

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

25243442364 is a wasteful number, since it uses less digits than its factorization.

25243442364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926586 (or 4926584 counting only the distinct ones).

The product of its digits is 552960, while the sum is 39.

The spelling of 25243442364 in words is "twenty-five billion, two hundred forty-three million, four hundred forty-two thousand, three hundred sixty-four".