505042079 has 2 divisors, whose sum is σ = 505042080. Its totient is φ = 505042078.

The previous prime is 505042067. The next prime is 505042081. The reversal of 505042079 is 970240505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505042079 is a prime.

Together with 505042081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505042019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252521039 + 252521040.

It is an arithmetic number, because the mean of its divisors is an integer number (252521040).

Almost surely, 2^505042079 is an apocalyptic number.

505042079 is a deficient number, since it is larger than the sum of its proper divisors (1).

505042079 is an equidigital number, since it uses as much as digits as its factorization.

505042079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 505042079 is about 22473.1412802038. The cubic root of 505042079 is about 796.3595417709.

The spelling of 505042079 in words is "five hundred five million, forty-two thousand, seventy-nine".