505550019 has 16 divisors (see below), whose sum is σ = 726711552. Its totient is φ = 310767648.

The previous prime is 505549999. The next prime is 505550027. The reversal of 505550019 is 910055505.

It is not a de Polignac number, because 505550019 - 2⁹ = 505549507 is a prime.

It is a super-2 number, since 2×505550019² = 511161643421800722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505550099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31744 + ... + 44930.

It is an arithmetic number, because the mean of its divisors is an integer number (45419472).

Almost surely, 2^505550019 is an apocalyptic number.

505550019 is a deficient number, since it is larger than the sum of its proper divisors (221161533).

505550019 is a wasteful number, since it uses less digits than its factorization.

505550019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14186.

The product of its (nonzero) digits is 5625, while the sum is 30.

The square root of 505550019 is about 22484.4394860090. The cubic root of 505550019 is about 796.6264286635.

The spelling of 505550019 in words is "five hundred five million, five hundred fifty thousand, nineteen".