5515151 has 2 divisors, whose sum is σ = 5515152. Its totient is φ = 5515150.

The previous prime is 5515141. The next prime is 5515163. The reversal of 5515151 is 1515155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5515151 - 2⁶ = 5515087 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5515141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757575 + 2757576.

It is an arithmetic number, because the mean of its divisors is an integer number (2757576).

Almost surely, 2^5515151 is an apocalyptic number.

5515151 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515151 is an equidigital number, since it uses as much as digits as its factorization.

5515151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 625, while the sum is 23.

The square root of 5515151 is about 2348.4358624412. The cubic root of 5515151 is about 176.6793539403.

The spelling of 5515151 in words is "five million, five hundred fifteen thousand, one hundred fifty-one".