506565407 has 2 divisors, whose sum is σ = 506565408. Its totient is φ = 506565406.

The previous prime is 506565383. The next prime is 506565419. The reversal of 506565407 is 704565605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506565407 - 2⁶ = 506565343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506565487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253282703 + 253282704.

It is an arithmetic number, because the mean of its divisors is an integer number (253282704).

Almost surely, 2^506565407 is an apocalyptic number.

506565407 is a deficient number, since it is larger than the sum of its proper divisors (1).

506565407 is an equidigital number, since it uses as much as digits as its factorization.

506565407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 506565407 is about 22507.0079530799. The cubic root of 506565407 is about 797.1594085506.

The spelling of 506565407 in words is "five hundred six million, five hundred sixty-five thousand, four hundred seven".