25447521452 has 12 divisors (see below), whose sum is σ = 45069707256. Its totient is φ = 12570462240.

The previous prime is 25447521439. The next prime is 25447521479. The reversal of 25447521452 is 25412574452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38324249 + ... + 38324912.

It is an arithmetic number, because the mean of its divisors is an integer number (3755808938).

Almost surely, 2^25447521452 is an apocalyptic number.

It is an amenable number.

25447521452 is a deficient number, since it is larger than the sum of its proper divisors (19622185804).

25447521452 is a wasteful number, since it uses less digits than its factorization.

25447521452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76649248 (or 76649246 counting only the distinct ones).

The product of its digits is 448000, while the sum is 41.

The spelling of 25447521452 in words is "twenty-five billion, four hundred forty-seven million, five hundred twenty-one thousand, four hundred fifty-two".