25513305452 has 24 divisors (see below), whose sum is σ = 45875653824. Its totient is φ = 12406286592.

The previous prime is 25513305421. The next prime is 25513305457. The reversal of 25513305452 is 25450331552.

It is not an unprimeable number, because it can be changed into a prime (25513305457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300788 + ... + 376164.

It is an arithmetic number, because the mean of its divisors is an integer number (1911485576).

Almost surely, 2^25513305452 is an apocalyptic number.

It is an amenable number.

25513305452 is a deficient number, since it is larger than the sum of its proper divisors (20362348372).

25513305452 is a wasteful number, since it uses less digits than its factorization.

25513305452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77705 (or 77703 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 25513305452 in words is "twenty-five billion, five hundred thirteen million, three hundred five thousand, four hundred fifty-two".