20136530054 has 16 divisors (see below), whose sum is σ = 31026051216. Its totient is φ = 9794599200.

The previous prime is 20136529997. The next prime is 20136530059. The reversal of 20136530054 is 45003563102.

It is a junction number, because it is equal to n+sod(n) for n = 20136529999 and 20136530026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136530059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551444 + ... + 586824.

It is an arithmetic number, because the mean of its divisors is an integer number (1939128201).

Almost surely, 2^20136530054 is an apocalyptic number.

20136530054 is a deficient number, since it is larger than the sum of its proper divisors (10889521162).

20136530054 is a wasteful number, since it uses less digits than its factorization.

20136530054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43111.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 20136530054 in words is "twenty billion, one hundred thirty-six million, five hundred thirty thousand, fifty-four".