506042621 has 8 divisors (see below), whose sum is σ = 612354240. Its totient is φ = 408235968.

The previous prime is 506042609. The next prime is 506042627. The reversal of 506042621 is 126240605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-506042621 is a prime.

It is a super-3 number, since 3×506042621³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506042627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126111 + ... + 2126348.

It is an arithmetic number, because the mean of its divisors is an integer number (76544280).

Almost surely, 2^506042621 is an apocalyptic number.

It is an amenable number.

506042621 is a deficient number, since it is larger than the sum of its proper divisors (106311619).

506042621 is a wasteful number, since it uses less digits than its factorization.

506042621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252483.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 506042621 is about 22495.3911057354. The cubic root of 506042621 is about 796.8850858157.

The spelling of 506042621 in words is "five hundred six million, forty-two thousand, six hundred twenty-one".