20542424502 has 16 divisors (see below), whose sum is σ = 41115966192. Its totient is φ = 6842288640.

The previous prime is 20542424501. The next prime is 20542424509.

20542424502 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 20542424502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20542424501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287963 + ... + 1303814.

It is an arithmetic number, because the mean of its divisors is an integer number (2569747887).

Almost surely, 2^20542424502 is an apocalyptic number.

20542424502 is an abundant number, since it is smaller than the sum of its proper divisors (20573541690).

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

20542424502 is a wasteful number, since it uses less digits than its factorization.

20542424502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593103.

The product of its (nonzero) digits is 25600, while the sum is 30.

The spelling of 20542424502 in words is "twenty billion, five hundred forty-two million, four hundred twenty-four thousand, five hundred two".