20527530842573 has 16 divisors (see below), whose sum is σ = 21837843771120. Its totient is φ = 19228842909696.

The previous prime is 20527530842551. The next prime is 20527530842617. The reversal of 20527530842573 is 37524803572502.

It can be written as a sum of positive squares in 8 ways, for example, as 3263323022089 + 17264207820484 = 1806467^2 + 4155022^2 .

It is a cyclic number.

It is not a de Polignac number, because 20527530842573 - 2¹⁰ = 20527530841549 is a prime.

It is a super-3 number, since 3×20527530842573³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20527530842473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111215 + ... + 6408387.

It is an arithmetic number, because the mean of its divisors is an integer number (1364865235695).

Almost surely, 2^{20527530842573} is an apocalyptic number.

It is an amenable number.

20527530842573 is a deficient number, since it is larger than the sum of its proper divisors (1310312928547).

20527530842573 is a wasteful number, since it uses less digits than its factorization.

20527530842573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298096.

The product of its (nonzero) digits is 14112000, while the sum is 53.

The spelling of 20527530842573 in words is "twenty trillion, five hundred twenty-seven billion, five hundred thirty million, eight hundred forty-two thousand, five hundred seventy-three".