5515969451 has 2 divisors, whose sum is σ = 5515969452. Its totient is φ = 5515969450.

The previous prime is 5515969441. The next prime is 5515969471. The reversal of 5515969451 is 1549695155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5515969451 - 2¹⁴ = 5515953067 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5515969451.

It is not a weakly prime, because it can be changed into another prime (5515969441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757984725 + 2757984726.

It is an arithmetic number, because the mean of its divisors is an integer number (2757984726).

Almost surely, 2^5515969451 is an apocalyptic number.

5515969451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515969451 is an equidigital number, since it uses as much as digits as its factorization.

5515969451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1215000, while the sum is 50.

The square root of 5515969451 is about 74269.5728478359. The cubic root of 5515969451 is about 1766.8809327440.

The spelling of 5515969451 in words is "five billion, five hundred fifteen million, nine hundred sixty-nine thousand, four hundred fifty-one".