505436625 has 32 divisors (see below), whose sum is σ = 934502400. Its totient is φ = 269564400.

The previous prime is 505436599. The next prime is 505436629. The reversal of 505436625 is 526634505.

It is a happy number.

505436625 is a `hidden beast` number, since 50 + 543 + 6 + 62 + 5 = 666.

It is not a de Polignac number, because 505436625 - 2⁷ = 505436497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505436625.

It is not an unprimeable number, because it can be changed into a prime (505436629) 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 in 31 ways as a sum of consecutive naturals, for example, 71505 + ... + 78254.

It is an arithmetic number, because the mean of its divisors is an integer number (29203200).

Almost surely, 2^505436625 is an apocalyptic number.

It is an amenable number.

505436625 is a deficient number, since it is larger than the sum of its proper divisors (429065775).

505436625 is a wasteful number, since it uses less digits than its factorization.

505436625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149783 (or 149767 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 505436625 is about 22481.9177340368. The cubic root of 505436625 is about 796.5668635638.

The spelling of 505436625 in words is "five hundred five million, four hundred thirty-six thousand, six hundred twenty-five".