20624501532 has 48 divisors (see below), whose sum is σ = 49874751360. Its totient is φ = 6625574592.

The previous prime is 20624501459. The next prime is 20624501549. The reversal of 20624501532 is 23510542602.

It is a self number, because there is not a number n which added to its sum of digits gives 20624501532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136183 + ... + 244529.

It is an arithmetic number, because the mean of its divisors is an integer number (1039057320).

Almost surely, 2^20624501532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20624501532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24937375680).

20624501532 is an abundant number, since it is smaller than the sum of its proper divisors (29250249828).

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

20624501532 is a wasteful number, since it uses less digits than its factorization.

20624501532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108930 (or 108928 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 20624501532 in words is "twenty billion, six hundred twenty-four million, five hundred one thousand, five hundred thirty-two".