505644625 has 16 divisors (see below), whose sum is σ = 664260480. Its totient is φ = 383223600.

The previous prime is 505644599. The next prime is 505644631. The reversal of 505644625 is 526446505.

It is not a de Polignac number, because 505644625 - 2⁵ = 505644593 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, 104077 + ... + 108826.

It is an arithmetic number, because the mean of its divisors is an integer number (41516280).

Almost surely, 2^505644625 is an apocalyptic number.

It is an amenable number.

505644625 is a deficient number, since it is larger than the sum of its proper divisors (158615855).

505644625 is a wasteful number, since it uses less digits than its factorization.

505644625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212937 (or 212927 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 505644625 is about 22486.5431980996. The cubic root of 505644625 is about 796.6761177391.

The spelling of 505644625 in words is "five hundred five million, six hundred forty-four thousand, six hundred twenty-five".