20542051435 has 8 divisors (see below), whose sum is σ = 24697597680. Its totient is φ = 16402217184.

The previous prime is 20542051403. The next prime is 20542051459. The reversal of 20542051435 is 53415024502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20542051435 - 2⁵ = 20542051403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20542051397 and 20542051406.

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 7 ways as a sum of consecutive naturals, for example, 3925120 + ... + 3930349.

It is an arithmetic number, because the mean of its divisors is an integer number (3087199710).

Almost surely, 2^20542051435 is an apocalyptic number.

20542051435 is a deficient number, since it is larger than the sum of its proper divisors (4155546245).

20542051435 is an equidigital number, since it uses as much as digits as its factorization.

20542051435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855997.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 20542051435 its reverse (53415024502), we get a palindrome (73957075937).

It can be divided in two parts, 2054 and 2051435, that added together give a square (2053489 = 1433²).

The spelling of 20542051435 in words is "twenty billion, five hundred forty-two million, fifty-one thousand, four hundred thirty-five".