5520551 has 2 divisors, whose sum is σ = 5520552. Its totient is φ = 5520550.

The previous prime is 5520521. The next prime is 5520553. The reversal of 5520551 is 1550255.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5520551 is a prime.

Together with 5520553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5520553) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760275 + 2760276.

It is an arithmetic number, because the mean of its divisors is an integer number (2760276).

Almost surely, 2^5520551 is an apocalyptic number.

5520551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5520551 is an equidigital number, since it uses as much as digits as its factorization.

5520551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 5520551 is about 2349.5852825552. The cubic root of 5520551 is about 176.7369986175.

The spelling of 5520551 in words is "five million, five hundred twenty thousand, five hundred fifty-one".