20504024541 has 144 divisors (see below), whose sum is σ = 41369477760. Its totient is φ = 9491489280.

The previous prime is 20504024531. The next prime is 20504024543. The reversal of 20504024541 is 14542040502.

20504024541 is a `hidden beast` number, since 205 + 0 + 4 + 0 + 2 + 454 + 1 = 666.

It is not a de Polignac number, because 20504024541 - 2¹⁰ = 20504023517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20504024543) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 3393375 + ... + 3399411.

It is an arithmetic number, because the mean of its divisors is an integer number (287288040).

Almost surely, 2^20504024541 is an apocalyptic number.

20504024541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20504024541 is an abundant number, since it is smaller than the sum of its proper divisors (20865453219).

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

20504024541 is a wasteful number, since it uses less digits than its factorization.

20504024541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116 (or 6100 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The spelling of 20504024541 in words is "twenty billion, five hundred four million, twenty-four thousand, five hundred forty-one".