523145225 has 12 divisors (see below), whose sum is σ = 653656080. Its totient is φ = 415318800.

The previous prime is 523145219. The next prime is 523145237. The reversal of 523145225 is 522541325.

It is not a de Polignac number, because 523145225 - 2⁴ = 523145209 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 11 ways as a sum of consecutive naturals, for example, 76595 + ... + 83144.

It is an arithmetic number, because the mean of its divisors is an integer number (54471340).

Almost surely, 2^523145225 is an apocalyptic number.

It is an amenable number.

523145225 is a deficient number, since it is larger than the sum of its proper divisors (130510855).

523145225 is a wasteful number, since it uses less digits than its factorization.

523145225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159880 (or 159875 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 523145225 is about 22872.3681546096. The cubic root of 523145225 is about 805.7631870827.

The spelling of 523145225 in words is "five hundred twenty-three million, one hundred forty-five thousand, two hundred twenty-five".