20624242554 has 36 divisors (see below), whose sum is σ = 46713216186. Its totient is φ = 6575842416.

The previous prime is 20624242517. The next prime is 20624242567. The reversal of 20624242554 is 45524242602.

20624242554 is a `hidden beast` number, since 2 + 0 + 62 + 4 + 2 + 42 + 554 = 666.

20624242554 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10956436929 + 9667805625 = 104673^2 + 98325^2 .

It is a super-3 number, since 3×20624242554³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1073457 + ... + 1092500.

Almost surely, 2^20624242554 is an apocalyptic number.

20624242554 is an abundant number, since it is smaller than the sum of its proper divisors (26088973632).

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

20624242554 is a wasteful number, since it uses less digits than its factorization.

20624242554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166011 (or 2165985 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 20624242554 in words is "twenty billion, six hundred twenty-four million, two hundred forty-two thousand, five hundred fifty-four".