15550113 has 8 divisors (see below), whose sum is σ = 21824800. Its totient is φ = 9821088.

The previous prime is 15550103. The next prime is 15550141. The reversal of 15550113 is 31105551.

15550113 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 not a de Polignac number, because 15550113 - 2¹² = 15546017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15550113.

It is not an unprimeable number, because it can be changed into a prime (15550103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136348 + ... + 136461.

It is an arithmetic number, because the mean of its divisors is an integer number (2728100).

Almost surely, 2^15550113 is an apocalyptic number.

It is an amenable number.

15550113 is a deficient number, since it is larger than the sum of its proper divisors (6274687).

15550113 is a wasteful number, since it uses less digits than its factorization.

15550113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272831.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 15550113 is about 3943.3631585234. The cubic root of 15550113 is about 249.5999628893.

Adding to 15550113 its reverse (31105551), we get a palindrome (46655664).

The spelling of 15550113 in words is "fifteen million, five hundred fifty thousand, one hundred thirteen".