15155545425 has 24 divisors (see below), whose sum is σ = 25065374880. Its totient is φ = 8080310400.

The previous prime is 15155545421. The next prime is 15155545463. The reversal of 15155545425 is 52454555151.

It is a happy number.

15155545425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15155545425 - 2² = 15155545421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15155545421) 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 23 ways as a sum of consecutive naturals, for example, 209190 + ... + 272160.

It is an arithmetic number, because the mean of its divisors is an integer number (1044390620).

Almost surely, 2^15155545425 is an apocalyptic number.

15155545425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15155545425 is a deficient number, since it is larger than the sum of its proper divisors (9909829455).

15155545425 is a wasteful number, since it uses less digits than its factorization.

15155545425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66193 (or 66188 counting only the distinct ones).

The product of its digits is 500000, while the sum is 42.

The spelling of 15155545425 in words is "fifteen billion, one hundred fifty-five million, five hundred forty-five thousand, four hundred twenty-five".