5515110551 has 2 divisors, whose sum is σ = 5515110552. Its totient is φ = 5515110550.

The previous prime is 5515110547. The next prime is 5515110571. The reversal of 5515110551 is 1550115155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5515110551 - 2² = 5515110547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5515110511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757555275 + 2757555276.

It is an arithmetic number, because the mean of its divisors is an integer number (2757555276).

Almost surely, 2^5515110551 is an apocalyptic number.

5515110551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515110551 is an equidigital number, since it uses as much as digits as its factorization.

5515110551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3125, while the sum is 29.

The square root of 5515110551 is about 74263.7903086019. The cubic root of 5515110551 is about 1766.7892200771.

The spelling of 5515110551 in words is "five billion, five hundred fifteen million, one hundred ten thousand, five hundred fifty-one".