20004524 has 12 divisors (see below), whose sum is σ = 35162400. Its totient is φ = 9958128.

The previous prime is 20004521. The next prime is 20004527. The reversal of 20004524 is 42540002.

It is an interprime number because it is at equal distance from previous prime (20004521) and next prime (20004527).

It is not an unprimeable number, because it can be changed into a prime (20004521) 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 3 ways as a sum of consecutive naturals, for example, 10004 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (2930200).

Almost surely, 2^20004524 is an apocalyptic number.

It is an amenable number.

20004524 is a deficient number, since it is larger than the sum of its proper divisors (15157876).

20004524 is a wasteful number, since it uses less digits than its factorization.

20004524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22072 (or 22070 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20004524 is about 4472.6417249764. The cubic root of 20004524 is about 271.4622268253.

Adding to 20004524 its reverse (42540002), we get a palindrome (62544526).

The spelling of 20004524 in words is "twenty million, four thousand, five hundred twenty-four".