510551 has 2 divisors, whose sum is σ = 510552. Its totient is φ = 510550.

The previous prime is 510529. The next prime is 510553. The reversal of 510551 is 155015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 510551 - 2¹⁴ = 494167 is a prime.

Together with 510553, 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 (510553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255275 + 255276.

It is an arithmetic number, because the mean of its divisors is an integer number (255276).

2⁵¹⁰⁵⁵¹ is an apocalyptic number.

510551 is a deficient number, since it is larger than the sum of its proper divisors (1).

510551 is an equidigital number, since it uses as much as digits as its factorization.

510551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 510551 is about 714.5285158760. The cubic root of 510551 is about 79.9244599437.

Adding to 510551 its reverse (155015), we get a palindrome (665566).

The spelling of 510551 in words is "five hundred ten thousand, five hundred fifty-one".