15510641 has 2 divisors, whose sum is σ = 15510642. Its totient is φ = 15510640.

The previous prime is 15510619. The next prime is 15510643. The reversal of 15510641 is 14601551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 3225616 = 3505^2 + 1796^2 .

It is an emirp because it is prime and its reverse (14601551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15510641 - 2¹⁰ = 15509617 is a prime.

It is a Sophie Germain prime.

Together with 15510643, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15510643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7755320 + 7755321.

It is an arithmetic number, because the mean of its divisors is an integer number (7755321).

Almost surely, 2^15510641 is an apocalyptic number.

It is an amenable number.

15510641 is a deficient number, since it is larger than the sum of its proper divisors (1).

15510641 is an equidigital number, since it uses as much as digits as its factorization.

15510641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 15510641 is about 3938.3551134960. The cubic root of 15510641 is about 249.3885912698.

The spelling of 15510641 in words is "fifteen million, five hundred ten thousand, six hundred forty-one".