25194116791259 has 4 divisors (see below), whose sum is σ = 27132125775216. Its totient is φ = 23256107807304.

The previous prime is 25194116791247. The next prime is 25194116791289. The reversal of 25194116791259 is 95219761149152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25194116791259 - 2⁴⁴ = 7601930746843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25194116791289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969004491959 + ... + 969004491984.

It is an arithmetic number, because the mean of its divisors is an integer number (6783031443804).

Almost surely, 2^{25194116791259} is an apocalyptic number.

25194116791259 is a deficient number, since it is larger than the sum of its proper divisors (1938008983957).

25194116791259 is a wasteful number, since it uses less digits than its factorization.

25194116791259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938008983956.

The product of its digits is 12247200, while the sum is 62.

The spelling of 25194116791259 in words is "twenty-five trillion, one hundred ninety-four billion, one hundred sixteen million, seven hundred ninety-one thousand, two hundred fifty-nine".