20052055518 has 32 divisors (see below), whose sum is σ = 43775233920. Its totient is φ = 6072867360.

The previous prime is 20052055489. The next prime is 20052055519. The reversal of 20052055518 is 81555025002.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052055519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28348 + ... + 202256.

It is an arithmetic number, because the mean of its divisors is an integer number (1367976060).

Almost surely, 2^20052055518 is an apocalyptic number.

20052055518 is an abundant number, since it is smaller than the sum of its proper divisors (23723178402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20052055518 is a wasteful number, since it uses less digits than its factorization.

20052055518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175672.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 20052055518 in words is "twenty billion, fifty-two million, fifty-five thousand, five hundred eighteen".