15255691797 has 8 divisors (see below), whose sum is σ = 20348729280. Its totient is φ = 10166557760.

The previous prime is 15255691771. The next prime is 15255691799. The reversal of 15255691797 is 79719655251.

15255691797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15255691797 - 2⁶ = 15255691733 is a prime.

It is a super-2 number, since 2×15255691797² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15255691799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966729 + ... + 982382.

It is an arithmetic number, because the mean of its divisors is an integer number (2543591160).

Almost surely, 2^15255691797 is an apocalyptic number.

It is an amenable number.

15255691797 is a deficient number, since it is larger than the sum of its proper divisors (5093037483).

15255691797 is a wasteful number, since it uses less digits than its factorization.

15255691797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951723.

The product of its digits is 5953500, while the sum is 57.

The spelling of 15255691797 in words is "fifteen billion, two hundred fifty-five million, six hundred ninety-one thousand, seven hundred ninety-seven".