5515451 has 2 divisors, whose sum is σ = 5515452. Its totient is φ = 5515450.

The previous prime is 5515441. The next prime is 5515457. The reversal of 5515451 is 1545155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5515451 is a prime.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 5515451.

It is not a weakly prime, because it can be changed into another prime (5515457) 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, 2757725 + 2757726.

It is an arithmetic number, because the mean of its divisors is an integer number (2757726).

Almost surely, 2^5515451 is an apocalyptic number.

5515451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515451 is an equidigital number, since it uses as much as digits as its factorization.

5515451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2500, while the sum is 26.

The square root of 5515451 is about 2348.4997338727. The cubic root of 5515451 is about 176.6825574093.

The spelling of 5515451 in words is "five million, five hundred fifteen thousand, four hundred fifty-one".