25513851452 has 12 divisors (see below), whose sum is σ = 44669091096. Its totient is φ = 12751254000.

The previous prime is 25513851443. The next prime is 25513851479. The reversal of 25513851452 is 25415831552.

It is a congruent number.

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, 1407803 + ... + 1425810.

It is an arithmetic number, because the mean of its divisors is an integer number (3722424258).

Almost surely, 2^25513851452 is an apocalyptic number.

It is an amenable number.

25513851452 is a deficient number, since it is larger than the sum of its proper divisors (19155239644).

25513851452 is a wasteful number, since it uses less digits than its factorization.

25513851452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835868 (or 2835866 counting only the distinct ones).

The product of its digits is 240000, while the sum is 41.

The spelling of 25513851452 in words is "twenty-five billion, five hundred thirteen million, eight hundred fifty-one thousand, four hundred fifty-two".