20504524 has 6 divisors (see below), whose sum is σ = 35882924. Its totient is φ = 10252260.

The previous prime is 20504509. The next prime is 20504543. The reversal of 20504524 is 42540502.

It is a junction number, because it is equal to n+sod(n) for n = 20504495 and 20504504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563062 + ... + 2563069.

Almost surely, 2^20504524 is an apocalyptic number.

It is an amenable number.

20504524 is a deficient number, since it is larger than the sum of its proper divisors (15378400).

20504524 is a wasteful number, since it uses less digits than its factorization.

20504524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126135 (or 5126133 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20504524 is about 4528.1921337328. The cubic root of 20504524 is about 273.7053148083.

The spelling of 20504524 in words is "twenty million, five hundred four thousand, five hundred twenty-four".