505773631 has 16 divisors (see below), whose sum is σ = 564169248. Its totient is φ = 449539200.

The previous prime is 505773623. The next prime is 505773637. The reversal of 505773631 is 136377505.

It is a happy number.

It is not a de Polignac number, because 505773631 - 2³ = 505773623 is a prime.

It is a super-2 number, since 2×505773631² = 511613931629848322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505773637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113905 + ... + 118261.

It is an arithmetic number, because the mean of its divisors is an integer number (35260578).

Almost surely, 2^505773631 is an apocalyptic number.

505773631 is a deficient number, since it is larger than the sum of its proper divisors (58395617).

505773631 is a wasteful number, since it uses less digits than its factorization.

505773631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602.

The product of its (nonzero) digits is 66150, while the sum is 37.

The square root of 505773631 is about 22489.4115307626. The cubic root of 505773631 is about 796.7438644363.

The spelling of 505773631 in words is "five hundred five million, seven hundred seventy-three thousand, six hundred thirty-one".