15552113 has 2 divisors, whose sum is σ = 15552114. Its totient is φ = 15552112.

The previous prime is 15552109. The next prime is 15552143. The reversal of 15552113 is 31125551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11175649 + 4376464 = 3343^2 + 2092^2 .

It is a cyclic number.

It is not a de Polignac number, because 15552113 - 2² = 15552109 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15552143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7776056 + 7776057.

It is an arithmetic number, because the mean of its divisors is an integer number (7776057).

Almost surely, 2^15552113 is an apocalyptic number.

It is an amenable number.

15552113 is a deficient number, since it is larger than the sum of its proper divisors (1).

15552113 is an equidigital number, since it uses as much as digits as its factorization.

15552113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 750, while the sum is 23.

The square root of 15552113 is about 3943.6167410133. The cubic root of 15552113 is about 249.6106633159.

Adding to 15552113 its reverse (31125551), we get a palindrome (46677664).

The spelling of 15552113 in words is "fifteen million, five hundred fifty-two thousand, one hundred thirteen".