25447272632 has 16 divisors (see below), whose sum is σ = 47717276640. Its totient is φ = 12722665536.

The previous prime is 25447272629. The next prime is 25447272637. The reversal of 25447272632 is 23627274452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25447272637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173 + ... + 225620.

It is an arithmetic number, because the mean of its divisors is an integer number (2982329790).

Almost surely, 2^25447272632 is an apocalyptic number.

It is an amenable number.

25447272632 is a deficient number, since it is larger than the sum of its proper divisors (22270004008).

25447272632 is a wasteful number, since it uses less digits than its factorization.

25447272632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242702 (or 242698 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 44.

The spelling of 25447272632 in words is "twenty-five billion, four hundred forty-seven million, two hundred seventy-two thousand, six hundred thirty-two".