20524423424 has 36 divisors (see below), whose sum is σ = 40977825840. Its totient is φ = 10259919360.

The previous prime is 20524423421. The next prime is 20524423429. The reversal of 20524423424 is 42432442502.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (20524423421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2253119 + ... + 2262209.

It is an arithmetic number, because the mean of its divisors is an integer number (1138272940).

Almost surely, 2^20524423424 is an apocalyptic number.

It is an amenable number.

20524423424 is a deficient number, since it is larger than the sum of its proper divisors (20453402416).

20524423424 is an frugal number, since it uses more digits than its factorization.

20524423424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17926 (or 17912 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 20524423424 its reverse (42432442502), we get a palindrome (62956865926).

The spelling of 20524423424 in words is "twenty billion, five hundred twenty-four million, four hundred twenty-three thousand, four hundred twenty-four".