506223345 has 16 divisors (see below), whose sum is σ = 811337472. Its totient is φ = 269525760.

The previous prime is 506223343. The next prime is 506223349. The reversal of 506223345 is 543322605.

It is not a de Polignac number, because 506223345 - 2¹ = 506223343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506223343) 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, 19561 + ... + 37350.

It is an arithmetic number, because the mean of its divisors is an integer number (50708592).

Almost surely, 2^506223345 is an apocalyptic number.

It is an amenable number.

506223345 is a deficient number, since it is larger than the sum of its proper divisors (305114127).

506223345 is a wasteful number, since it uses less digits than its factorization.

506223345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57512.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 506223345 is about 22499.4076588696. The cubic root of 506223345 is about 796.9799389061.

The spelling of 506223345 in words is "five hundred six million, two hundred twenty-three thousand, three hundred forty-five".