505571625 has 160 divisors (see below), whose sum is σ = 1065512448. Its totient is φ = 236649600.

The previous prime is 505571581. The next prime is 505571629. The reversal of 505571625 is 526175505.

It is a happy number.

It is not a de Polignac number, because 505571625 - 2⁷ = 505571497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505571625.

It is not an unprimeable number, because it can be changed into a prime (505571629) 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 159 ways as a sum of consecutive naturals, for example, 3027292 + ... + 3027458.

Almost surely, 2^505571625 is an apocalyptic number.

It is an amenable number.

505571625 is an abundant number, since it is smaller than the sum of its proper divisors (559940823).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505571625 is a wasteful number, since it uses less digits than its factorization.

505571625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 505571625 is about 22484.9199464886. The cubic root of 505571625 is about 796.6377771387.

The spelling of 505571625 in words is "five hundred five million, five hundred seventy-one thousand, six hundred twenty-five".