25755874722 has 66 divisors (see below), whose sum is σ = 58074747483. Its totient is φ = 8566907652.

The previous prime is 25755874709. The next prime is 25755874763. The reversal of 25755874722 is 22747855752.

25755874722 is a `hidden beast` number, since 2 + 57 + 5 + 587 + 4 + 7 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12877937361 + 12877937361 = 113481^2 + 113481^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=113481.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 55151533 + ... + 55151999.

Almost surely, 2^25755874722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25755874722

25755874722 is an abundant number, since it is smaller than the sum of its proper divisors (32318872761).

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

25755874722 is an frugal number, since it uses more digits than its factorization.

25755874722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 472 counting only the distinct ones).

The product of its digits is 10976000, while the sum is 54.

The spelling of 25755874722 in words is "twenty-five billion, seven hundred fifty-five million, eight hundred seventy-four thousand, seven hundred twenty-two".