506313421 has 12 divisors (see below), whose sum is σ = 545943456. Its totient is φ = 468656760.

The previous prime is 506313403. The next prime is 506313497. The reversal of 506313421 is 124313605.

It is not a de Polignac number, because 506313421 - 2¹⁷ = 506182349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506313221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10650 + ... + 33556.

It is an arithmetic number, because the mean of its divisors is an integer number (45495288).

Almost surely, 2^506313421 is an apocalyptic number.

It is an amenable number.

506313421 is a deficient number, since it is larger than the sum of its proper divisors (39630035).

506313421 is a wasteful number, since it uses less digits than its factorization.

506313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992 (or 22961 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 506313421 is about 22501.4093114187. The cubic root of 506313421 is about 797.0272069141.

The spelling of 506313421 in words is "five hundred six million, three hundred thirteen thousand, four hundred twenty-one".