505427407 has 2 divisors, whose sum is σ = 505427408. Its totient is φ = 505427406.

The previous prime is 505427389. The next prime is 505427411. The reversal of 505427407 is 704724505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505427407 - 2¹¹ = 505425359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505427467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252713703 + 252713704.

It is an arithmetic number, because the mean of its divisors is an integer number (252713704).

Almost surely, 2^505427407 is an apocalyptic number.

505427407 is a deficient number, since it is larger than the sum of its proper divisors (1).

505427407 is an equidigital number, since it uses as much as digits as its factorization.

505427407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 505427407 is about 22481.7127239007. The cubic root of 505427407 is about 796.5620210193.

The spelling of 505427407 in words is "five hundred five million, four hundred twenty-seven thousand, four hundred seven".