551515341551 has 2 divisors, whose sum is σ = 551515341552. Its totient is φ = 551515341550.

The previous prime is 551515341529. The next prime is 551515341613. The reversal of 551515341551 is 155143515155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551515341551 - 2³⁴ = 534335472367 is a prime.

It is a super-2 number, since 2×551515341551² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 551515341499 and 551515341508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551515341511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275757670775 + 275757670776.

It is an arithmetic number, because the mean of its divisors is an integer number (275757670776).

Almost surely, 2^551515341551 is an apocalyptic number.

551515341551 is a deficient number, since it is larger than the sum of its proper divisors (1).

551515341551 is an equidigital number, since it uses as much as digits as its factorization.

551515341551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 187500, while the sum is 41.

The spelling of 551515341551 in words is "five hundred fifty-one billion, five hundred fifteen million, three hundred forty-one thousand, five hundred fifty-one".