18530526 has 24 divisors (see below), whose sum is σ = 43112520. Its totient is φ = 5294352.

The previous prime is 18530461. The next prime is 18530537. The reversal of 18530526 is 62503581.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18530493 and 18530502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31221 + ... + 31808.

It is an arithmetic number, because the mean of its divisors is an integer number (1796355).

Almost surely, 2^18530526 is an apocalyptic number.

18530526 is an abundant number, since it is smaller than the sum of its proper divisors (24581994).

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

18530526 is a wasteful number, since it uses less digits than its factorization.

18530526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63048 (or 63041 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 18530526 is about 4304.7097463128. The cubic root of 18530526 is about 264.6240117063.

The spelling of 18530526 in words is "eighteen million, five hundred thirty thousand, five hundred twenty-six".