20453530226550 has 24 divisors (see below), whose sum is σ = 50724754962216. Its totient is φ = 5454274727040.

The previous prime is 20453530226543. The next prime is 20453530226551. The reversal of 20453530226550 is 5562203535402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453530226551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68178433939 + ... + 68178434238.

It is an arithmetic number, because the mean of its divisors is an integer number (2113531456759).

Almost surely, 2^{20453530226550} is an apocalyptic number.

20453530226550 is an abundant number, since it is smaller than the sum of its proper divisors (30271224735666).

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

20453530226550 is a wasteful number, since it uses less digits than its factorization.

20453530226550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136356868192 (or 136356868187 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 20453530226550 in words is "twenty trillion, four hundred fifty-three billion, five hundred thirty million, two hundred twenty-six thousand, five hundred fifty".