518226525 has 48 divisors (see below), whose sum is σ = 955851520. Its totient is φ = 275270400.

The previous prime is 518226523. The next prime is 518226529. The reversal of 518226525 is 525622815.

It is a happy number.

518226525 is a `hidden beast` number, since 51 + 82 + 2 + 6 + 525 = 666.

It is not a de Polignac number, because 518226525 - 2¹ = 518226523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 518226525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518226523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181509 + ... + 184341.

Almost surely, 2^518226525 is an apocalyptic number.

It is an amenable number.

518226525 is a deficient number, since it is larger than the sum of its proper divisors (437624995).

518226525 is a wasteful number, since it uses less digits than its factorization.

518226525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3112 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 518226525 is about 22764.5892780871. The cubic root of 518226525 is about 803.2299237119.

The spelling of 518226525 in words is "five hundred eighteen million, two hundred twenty-six thousand, five hundred twenty-five".