506602399 has 4 divisors (see below), whose sum is σ = 509432760. Its totient is φ = 503772040.

The previous prime is 506602387. The next prime is 506602441. The reversal of 506602399 is 993206605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993206605 = 5 ⋅198641321.

It is a cyclic number.

It is not a de Polignac number, because 506602399 - 2¹¹ = 506600351 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506602799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414912 + ... + 1415269.

It is an arithmetic number, because the mean of its divisors is an integer number (127358190).

Almost surely, 2^506602399 is an apocalyptic number.

506602399 is a deficient number, since it is larger than the sum of its proper divisors (2830361).

506602399 is a wasteful number, since it uses less digits than its factorization.

506602399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830360.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 506602399 is about 22507.8297265640. The cubic root of 506602399 is about 797.1788122990.

The spelling of 506602399 in words is "five hundred six million, six hundred two thousand, three hundred ninety-nine".