551959 has 2 divisors, whose sum is σ = 551960. Its totient is φ = 551958.

The previous prime is 551951. The next prime is 551963. The reversal of 551959 is 959155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551959 - 2³ = 551951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275979 + 275980.

It is an arithmetic number, because the mean of its divisors is an integer number (275980).

2⁵⁵¹⁹⁵⁹ is an apocalyptic number.

551959 is a deficient number, since it is larger than the sum of its proper divisors (1).

551959 is an equidigital number, since it uses as much as digits as its factorization.

551959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10125, while the sum is 34.

The square root of 551959 is about 742.9394322554. The cubic root of 551959 is about 82.0292875751.

The spelling of 551959 in words is "five hundred fifty-one thousand, nine hundred fifty-nine".