20540053435 has 32 divisors (see below), whose sum is σ = 27302717952. Its totient is φ = 14708954880.

The previous prime is 20540053421. The next prime is 20540053447. The reversal of 20540053435 is 53435004502.

It is a happy number.

It is not a de Polignac number, because 20540053435 - 2¹³ = 20540045243 is a prime.

It is a super-2 number, since 2×20540053435² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20540053397 and 20540053406.

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 31 ways as a sum of consecutive naturals, for example, 2593752 + ... + 2601658.

It is an arithmetic number, because the mean of its divisors is an integer number (853209936).

Almost surely, 2^20540053435 is an apocalyptic number.

20540053435 is a deficient number, since it is larger than the sum of its proper divisors (6762664517).

20540053435 is a wasteful number, since it uses less digits than its factorization.

20540053435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 20540053435 its reverse (53435004502), we get a palindrome (73975057937).

The spelling of 20540053435 in words is "twenty billion, five hundred forty million, fifty-three thousand, four hundred thirty-five".