505956679 has 2 divisors, whose sum is σ = 505956680. Its totient is φ = 505956678.

The previous prime is 505956637. The next prime is 505956701. The reversal of 505956679 is 976659505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505956679 - 2²⁵ = 472402247 is a prime.

It is a super-2 number, since 2×505956679² = 511984322049418082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505956379) 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 as a sum of consecutive naturals, namely, 252978339 + 252978340.

It is an arithmetic number, because the mean of its divisors is an integer number (252978340).

Almost surely, 2^505956679 is an apocalyptic number.

505956679 is a deficient number, since it is larger than the sum of its proper divisors (1).

505956679 is an equidigital number, since it uses as much as digits as its factorization.

505956679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2551500, while the sum is 52.

The square root of 505956679 is about 22493.4808111150. The cubic root of 505956679 is about 796.8399711866.

The spelling of 505956679 in words is "five hundred five million, nine hundred fifty-six thousand, six hundred seventy-nine".