15550113242 has 8 divisors (see below), whose sum is σ = 23376210996. Its totient is φ = 7758042912.

The previous prime is 15550113223. The next prime is 15550113251. The reversal of 15550113242 is 24231105551.

It can be written as a sum of positive squares in 2 ways, for example, as 15500001001 + 50112241 = 124499^2 + 7079^2 .

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

It is a super-3 number, since 3×15550113242³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8505713 + ... + 8507540.

Almost surely, 2^15550113242 is an apocalyptic number.

15550113242 is a deficient number, since it is larger than the sum of its proper divisors (7826097754).

15550113242 is a wasteful number, since it uses less digits than its factorization.

15550113242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17013712.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 15550113242 its reverse (24231105551), we get a palindrome (39781218793).

The spelling of 15550113242 in words is "fifteen billion, five hundred fifty million, one hundred thirteen thousand, two hundred forty-two".