5691228551 has 2 divisors, whose sum is σ = 5691228552. Its totient is φ = 5691228550.

The previous prime is 5691228547. The next prime is 5691228553. The reversal of 5691228551 is 1558221965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5691228551 - 2² = 5691228547 is a prime.

It is a Sophie Germain prime.

Together with 5691228553, 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 (5691228553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2845614275 + 2845614276.

It is an arithmetic number, because the mean of its divisors is an integer number (2845614276).

Almost surely, 2^5691228551 is an apocalyptic number.

5691228551 is the 40325-th centered heptagonal number.

5691228551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5691228551 is an equidigital number, since it uses as much as digits as its factorization.

5691228551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 44.

The square root of 5691228551 is about 75440.2316473114. The cubic root of 5691228551 is about 1785.3992260903.

The spelling of 5691228551 in words is "five billion, six hundred ninety-one million, two hundred twenty-eight thousand, five hundred fifty-one".