550555613 has 2 divisors, whose sum is σ = 550555614. Its totient is φ = 550555612.

The previous prime is 550555547. The next prime is 550555627. The reversal of 550555613 is 316555055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 507285529 + 43270084 = 22523^2 + 6578^2 .

It is a cyclic number.

It is not a de Polignac number, because 550555613 - 2¹² = 550551517 is a prime.

It is a super-2 number, since 2×550555613² = 606222966011611538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550555673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275277806 + 275277807.

It is an arithmetic number, because the mean of its divisors is an integer number (275277807).

Almost surely, 2^550555613 is an apocalyptic number.

It is an amenable number.

550555613 is a deficient number, since it is larger than the sum of its proper divisors (1).

550555613 is an equidigital number, since it uses as much as digits as its factorization.

550555613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56250, while the sum is 35.

The square root of 550555613 is about 23463.9215179390. The cubic root of 550555613 is about 819.5970720216.

The spelling of 550555613 in words is "five hundred fifty million, five hundred fifty-five thousand, six hundred thirteen".