20442282225 has 48 divisors (see below), whose sum is σ = 34749561600. Its totient is φ = 10598694400.

The previous prime is 20442282193. The next prime is 20442282233. The reversal of 20442282225 is 52228224402.

It is not a de Polignac number, because 20442282225 - 2⁵ = 20442282193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 505765 + ... + 544685.

It is an arithmetic number, because the mean of its divisors is an integer number (723949200).

Almost surely, 2^20442282225 is an apocalyptic number.

20442282225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20442282225 is a deficient number, since it is larger than the sum of its proper divisors (14307279375).

20442282225 is a wasteful number, since it uses less digits than its factorization.

20442282225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39130 (or 39125 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 33.

The spelling of 20442282225 in words is "twenty billion, four hundred forty-two million, two hundred eighty-two thousand, two hundred twenty-five".