25051725122 has 6 divisors (see below), whose sum is σ = 37577923443. Its totient is φ = 12525750642.

The previous prime is 25051725109. The next prime is 25051725173. The reversal of 25051725122 is 22152715052.

It can be written as a sum of positive squares in only one way, i.e., 12525862561 + 12525862561 = 111919^2 + 111919^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=111919.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 167879 + ... + 279797.

Almost surely, 2^25051725122 is an apocalyptic number.

25051725122 is a deficient number, since it is larger than the sum of its proper divisors (12526198321).

25051725122 is an frugal number, since it uses more digits than its factorization.

25051725122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223840 (or 111921 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

Multiplying 25051725122 by its sum of digits (32), we get a square (801655203904 = 895352²).

The spelling of 25051725122 in words is "twenty-five billion, fifty-one million, seven hundred twenty-five thousand, one hundred twenty-two".