504240291 has 6 divisors (see below), whose sum is σ = 728347100. Its totient is φ = 336160188.

The previous prime is 504240283. The next prime is 504240307. The reversal of 504240291 is 192042405.

It is not a de Polignac number, because 504240291 - 2³ = 504240283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504240991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28013341 + ... + 28013358.

Almost surely, 2^504240291 is an apocalyptic number.

504240291 is a deficient number, since it is larger than the sum of its proper divisors (224106809).

504240291 is a wasteful number, since it uses less digits than its factorization.

504240291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56026705 (or 56026702 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 504240291 is about 22455.2953888387. The cubic root of 504240291 is about 795.9378939238.

Adding to 504240291 its reverse (192042405), we get a palindrome (696282696).

The spelling of 504240291 in words is "five hundred four million, two hundred forty thousand, two hundred ninety-one".