501332423 has 4 divisors (see below), whose sum is σ = 527718360. Its totient is φ = 474946488.

The previous prime is 501332411. The next prime is 501332453. The reversal of 501332423 is 324233105.

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 501332423 - 2¹⁸ = 501070279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501332453) 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, 13192940 + ... + 13192977.

It is an arithmetic number, because the mean of its divisors is an integer number (131929590).

Almost surely, 2^501332423 is an apocalyptic number.

501332423 is a deficient number, since it is larger than the sum of its proper divisors (26385937).

501332423 is a wasteful number, since it uses less digits than its factorization.

501332423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385936.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 501332423 is about 22390.4538364009. The cubic root of 501332423 is about 794.4049305349.

Adding to 501332423 its reverse (324233105), we get a palindrome (825565528).

The spelling of 501332423 in words is "five hundred one million, three hundred thirty-two thousand, four hundred twenty-three".