25250761318 has 16 divisors (see below), whose sum is σ = 38131153200. Its totient is φ = 12540635136.

The previous prime is 25250761313. The next prime is 25250761337. The reversal of 25250761318 is 81316705252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250761313) by changing a digit.

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, 132358 + ... + 260806.

It is an arithmetic number, because the mean of its divisors is an integer number (2383197075).

Almost surely, 2^25250761318 is an apocalyptic number.

25250761318 is a deficient number, since it is larger than the sum of its proper divisors (12880391882).

25250761318 is a wasteful number, since it uses less digits than its factorization.

25250761318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129111.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 25250761318 in words is "twenty-five billion, two hundred fifty million, seven hundred sixty-one thousand, three hundred eighteen".