20136530053 has 16 divisors (see below), whose sum is σ = 20503652400. Its totient is φ = 19773444096.

The previous prime is 20136529997. The next prime is 20136530059. The reversal of 20136530053 is 35003563102.

It can be written as a sum of positive squares in 8 ways, for example, as 12837889 + 20123692164 = 3583^2 + 141858^2 .

It is a cyclic number.

It is not a de Polignac number, because 20136530053 - 2¹³ = 20136521861 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 7693201 + ... + 7695817.

It is an arithmetic number, because the mean of its divisors is an integer number (1281478275).

Almost surely, 2^20136530053 is an apocalyptic number.

It is an amenable number.

20136530053 is a deficient number, since it is larger than the sum of its proper divisors (367122347).

20136530053 is a wasteful number, since it uses less digits than its factorization.

20136530053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 8100, while the sum is 28.

The spelling of 20136530053 in words is "twenty billion, one hundred thirty-six million, five hundred thirty thousand, fifty-three".