25434669452 has 12 divisors (see below), whose sum is σ = 44544840816. Its totient is φ = 12707572080.

The previous prime is 25434669401. The next prime is 25434669473. The reversal of 25434669452 is 25496643452.

It is a self number, because there is not a number n which added to its sum of digits gives 25434669452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2434799 + ... + 2445222.

It is an arithmetic number, because the mean of its divisors is an integer number (3712070068).

Almost surely, 2^25434669452 is an apocalyptic number.

It is an amenable number.

25434669452 is a deficient number, since it is larger than the sum of its proper divisors (19110171364).

25434669452 is a wasteful number, since it uses less digits than its factorization.

25434669452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881328 (or 4881326 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 50.

The spelling of 25434669452 in words is "twenty-five billion, four hundred thirty-four million, six hundred sixty-nine thousand, four hundred fifty-two".