505551033 has 24 divisors (see below), whose sum is σ = 805601160. Its totient is φ = 303517440.

The previous prime is 505551023. The next prime is 505551037. The reversal of 505551033 is 330155505.

505551033 is a `hidden beast` number, since 5 + 0 + 555 + 103 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4149369 + 501401664 = 2037^2 + 22392^2 .

It is not a de Polignac number, because 505551033 - 2²⁰ = 504502457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505550988 and 505551006.

It is not an unprimeable number, because it can be changed into a prime (505551037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47898 + ... + 57491.

It is an arithmetic number, because the mean of its divisors is an integer number (33566715).

Almost surely, 2^505551033 is an apocalyptic number.

It is an amenable number.

505551033 is a deficient number, since it is larger than the sum of its proper divisors (300050127).

505551033 is a wasteful number, since it uses less digits than its factorization.

505551033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105449 (or 105446 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 505551033 is about 22484.4620349254. The cubic root of 505551033 is about 796.6269612707.

The spelling of 505551033 in words is "five hundred five million, five hundred fifty-one thousand, thirty-three".