551539 has 2 divisors, whose sum is σ = 551540. Its totient is φ = 551538.

The previous prime is 551519. The next prime is 551543. The reversal of 551539 is 935155.

551539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551539 - 2⁹ = 551027 is a prime.

It is not a weakly prime, because it can be changed into another prime (551519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275769 + 275770.

It is an arithmetic number, because the mean of its divisors is an integer number (275770).

2⁵⁵¹⁵³⁹ is an apocalyptic number.

551539 is a deficient number, since it is larger than the sum of its proper divisors (1).

551539 is an equidigital number, since it uses as much as digits as its factorization.

551539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3375, while the sum is 28.

The square root of 551539 is about 742.6567174678. The cubic root of 551539 is about 82.0084762208.

The spelling of 551539 in words is "five hundred fifty-one thousand, five hundred thirty-nine".