5515091 has 2 divisors, whose sum is σ = 5515092. Its totient is φ = 5515090.

The previous prime is 5515087. The next prime is 5515093. The reversal of 5515091 is 1905155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5515091 - 2² = 5515087 is a prime.

Together with 5515093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5515091.

It is not a weakly prime, because it can be changed into another prime (5515093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757545 + 2757546.

It is an arithmetic number, because the mean of its divisors is an integer number (2757546).

Almost surely, 2^5515091 is an apocalyptic number.

5515091 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515091 is an equidigital number, since it uses as much as digits as its factorization.

5515091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 5515091 is about 2348.4230879465. The cubic root of 5515091 is about 176.6787132326.

The spelling of 5515091 in words is "five million, five hundred fifteen thousand, ninety-one".