506099081 has 4 divisors (see below), whose sum is σ = 508115664. Its totient is φ = 504082500.

The previous prime is 506099047. The next prime is 506099119. The reversal of 506099081 is 180990605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506099081 is a prime.

It is a super-2 number, since 2×506099081² = 512272559578089122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506099381) 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, 1007915 + ... + 1008416.

It is an arithmetic number, because the mean of its divisors is an integer number (127028916).

Almost surely, 2^506099081 is an apocalyptic number.

It is an amenable number.

506099081 is a deficient number, since it is larger than the sum of its proper divisors (2016583).

506099081 is a wasteful number, since it uses less digits than its factorization.

506099081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016582.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 506099081 is about 22496.6459944588. The cubic root of 506099081 is about 796.9147213028.

The spelling of 506099081 in words is "five hundred six million, ninety-nine thousand, eighty-one".