20502555054 has 16 divisors (see below), whose sum is σ = 41006576592. Its totient is φ = 6833940608.

The previous prime is 20502555041. The next prime is 20502555061. The reversal of 20502555054 is 45055520502.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220432 + ... + 299324.

It is an arithmetic number, because the mean of its divisors is an integer number (2562911037).

Almost surely, 2^20502555054 is an apocalyptic number.

20502555054 is an abundant number, since it is smaller than the sum of its proper divisors (20504021538).

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

20502555054 is a wasteful number, since it uses less digits than its factorization.

20502555054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122211.

The product of its (nonzero) digits is 50000, while the sum is 33.

The spelling of 20502555054 in words is "twenty billion, five hundred two million, five hundred fifty-five thousand, fifty-four".