505066631 has 2 divisors, whose sum is σ = 505066632. Its totient is φ = 505066630.

The previous prime is 505066619. The next prime is 505066649. The reversal of 505066631 is 136660505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505066631 - 2²² = 500872327 is a prime.

It is a super-2 number, since 2×505066631² = 510184603499380322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505066831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252533315 + 252533316.

It is an arithmetic number, because the mean of its divisors is an integer number (252533316).

Almost surely, 2^505066631 is an apocalyptic number.

505066631 is a deficient number, since it is larger than the sum of its proper divisors (1).

505066631 is an equidigital number, since it uses as much as digits as its factorization.

505066631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 505066631 is about 22473.6875256376. The cubic root of 505066631 is about 796.3724462419.

The spelling of 505066631 in words is "five hundred five million, sixty-six thousand, six hundred thirty-one".