20552105450 has 24 divisors (see below), whose sum is σ = 38232419040. Its totient is φ = 8219658800.

The previous prime is 20552105411. The next prime is 20552105473. The reversal of 20552105450 is 5450125502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376385 + ... + 427515.

It is an arithmetic number, because the mean of its divisors is an integer number (1593017460).

Almost surely, 2^20552105450 is an apocalyptic number.

20552105450 is a deficient number, since it is larger than the sum of its proper divisors (17680313590).

20552105450 is a wasteful number, since it uses less digits than its factorization.

20552105450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59182 (or 59177 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 20552105450 in words is "twenty billion, five hundred fifty-two million, one hundred five thousand, four hundred fifty".