20444088225 has 96 divisors (see below), whose sum is σ = 40098969216. Its totient is φ = 9076838400.

The previous prime is 20444088221. The next prime is 20444088229. The reversal of 20444088225 is 52288044402.

It is an interprime number because it is at equal distance from previous prime (20444088221) and next prime (20444088229).

It is not a de Polignac number, because 20444088225 - 2² = 20444088221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20444088221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 499227 + ... + 538623.

It is an arithmetic number, because the mean of its divisors is an integer number (417697596).

Almost surely, 2^20444088225 is an apocalyptic number.

20444088225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20444088225 is a deficient number, since it is larger than the sum of its proper divisors (19654880991).

20444088225 is a wasteful number, since it uses less digits than its factorization.

20444088225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39475 (or 39470 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 39.

The spelling of 20444088225 in words is "twenty billion, four hundred forty-four million, eighty-eight thousand, two hundred twenty-five".