25049564832 has 48 divisors (see below), whose sum is σ = 65773663200. Its totient is φ = 8347498752.

The previous prime is 25049564819. The next prime is 25049564857. The reversal of 25049564832 is 23846594052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323419 + ... + 393317.

It is an arithmetic number, because the mean of its divisors is an integer number (1370284650).

Almost surely, 2^25049564832 is an apocalyptic number.

It is an amenable number.

25049564832 is an abundant number, since it is smaller than the sum of its proper divisors (40724098368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25049564832 is a wasteful number, since it uses less digits than its factorization.

25049564832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73645 (or 73637 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 25049564832 in words is "twenty-five billion, forty-nine million, five hundred sixty-four thousand, eight hundred thirty-two".