634505505 has 16 divisors (see below), whose sum is σ = 1016033280. Its totient is φ = 338128128.

The previous prime is 634505461. The next prime is 634505537. The reversal of 634505505 is 505505436.

It is not a de Polignac number, because 634505505 - 2¹³ = 634497313 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 2649 + ... + 35721.

It is an arithmetic number, because the mean of its divisors is an integer number (63502080).

Almost surely, 2^634505505 is an apocalyptic number.

It is an amenable number.

634505505 is a deficient number, since it is larger than the sum of its proper divisors (381527775).

634505505 is a wasteful number, since it uses less digits than its factorization.

634505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34360.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 634505505 is about 25189.3927080428. The cubic root of 634505505 is about 859.3006325156.

The spelling of 634505505 in words is "six hundred thirty-four million, five hundred five thousand, five hundred five".