505172625 has 16 divisors (see below), whose sum is σ = 840607872. Its totient is φ = 269425200.

The previous prime is 505172623. The next prime is 505172639. The reversal of 505172625 is 526271505.

It is not a de Polignac number, because 505172625 - 2¹ = 505172623 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (505172623) 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 15 ways as a sum of consecutive naturals, for example, 673189 + ... + 673938.

It is an arithmetic number, because the mean of its divisors is an integer number (52537992).

Almost surely, 2^505172625 is an apocalyptic number.

It is an amenable number.

505172625 is a deficient number, since it is larger than the sum of its proper divisors (335435247).

505172625 is a wasteful number, since it uses less digits than its factorization.

505172625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347145 (or 1347135 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 505172625 is about 22476.0455819079. The cubic root of 505172625 is about 796.4281516292.

The spelling of 505172625 in words is "five hundred five million, one hundred seventy-two thousand, six hundred twenty-five".