506791123 has 4 divisors (see below), whose sum is σ = 533464360. Its totient is φ = 480117888.

The previous prime is 506791099. The next prime is 506791127. The reversal of 506791123 is 321197605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506791123 - 2⁵ = 506791091 is a prime.

It is a super-2 number, since 2×506791123² = 513674484703202258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506791127) 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, 13336590 + ... + 13336627.

It is an arithmetic number, because the mean of its divisors is an integer number (133366090).

Almost surely, 2^506791123 is an apocalyptic number.

506791123 is a deficient number, since it is larger than the sum of its proper divisors (26673237).

506791123 is a wasteful number, since it uses less digits than its factorization.

506791123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26673236.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 506791123 is about 22512.0217439483. The cubic root of 506791123 is about 797.2777907065.

The spelling of 506791123 in words is "five hundred six million, seven hundred ninety-one thousand, one hundred twenty-three".