20502055535 has 16 divisors (see below), whose sum is σ = 27141186240. Its totient is φ = 14770709760.

The previous prime is 20502055523. The next prime is 20502055547. The reversal of 20502055535 is 53555020502.

It is an interprime number because it is at equal distance from previous prime (20502055523) and next prime (20502055547).

It is not a de Polignac number, because 20502055535 - 2¹⁸ = 20501793391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3843875 + ... + 3849204.

It is an arithmetic number, because the mean of its divisors is an integer number (1696324140).

Almost surely, 2^20502055535 is an apocalyptic number.

20502055535 is a deficient number, since it is larger than the sum of its proper divisors (6639130705).

20502055535 is a wasteful number, since it uses less digits than its factorization.

20502055535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693138.

The product of its (nonzero) digits is 37500, while the sum is 32.

The spelling of 20502055535 in words is "twenty billion, five hundred two million, fifty-five thousand, five hundred thirty-five".