25725549768 has 64 divisors (see below), whose sum is σ = 64944261120. Its totient is φ = 8491392000.

The previous prime is 25725549737. The next prime is 25725549797. The reversal of 25725549768 is 86794552752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1641168 + ... + 1656768.

It is an arithmetic number, because the mean of its divisors is an integer number (1014754080).

Almost surely, 2^25725549768 is an apocalyptic number.

It is an amenable number.

25725549768 is an abundant number, since it is smaller than the sum of its proper divisors (39218711352).

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

25725549768 is a wasteful number, since it uses less digits than its factorization.

25725549768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16278 (or 16274 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 60.

The spelling of 25725549768 in words is "twenty-five billion, seven hundred twenty-five million, five hundred forty-nine thousand, seven hundred sixty-eight".