506040247 has 2 divisors, whose sum is σ = 506040248. Its totient is φ = 506040246.

The previous prime is 506040193. The next prime is 506040277. The reversal of 506040247 is 742040605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506040247 - 2¹¹ = 506038199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506040277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253020123 + 253020124.

It is an arithmetic number, because the mean of its divisors is an integer number (253020124).

Almost surely, 2^506040247 is an apocalyptic number.

506040247 is a deficient number, since it is larger than the sum of its proper divisors (1).

506040247 is an equidigital number, since it uses as much as digits as its factorization.

506040247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 506040247 is about 22495.3383393093. The cubic root of 506040247 is about 796.8838396702.

The spelling of 506040247 in words is "five hundred six million, forty thousand, two hundred forty-seven".