25522777068 has 24 divisors (see below), whose sum is σ = 59855452272. Its totient is φ = 8464405824.

The previous prime is 25522777003. The next prime is 25522777073. The reversal of 25522777068 is 86077722552.

It is a self number, because there is not a number n which added to its sum of digits gives 25522777068.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5395855 + ... + 5400582.

It is an arithmetic number, because the mean of its divisors is an integer number (2493977178).

Almost surely, 2^25522777068 is an apocalyptic number.

It is an amenable number.

25522777068 is an abundant number, since it is smaller than the sum of its proper divisors (34332675204).

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

25522777068 is a wasteful number, since it uses less digits than its factorization.

25522777068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10796641 (or 10796639 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 25522777068 in words is "twenty-five billion, five hundred twenty-two million, seven hundred seventy-seven thousand, sixty-eight".