20944452025 has 24 divisors (see below), whose sum is σ = 29722740480. Its totient is φ = 14341848960.

The previous prime is 20944452019. The next prime is 20944452059. The reversal of 20944452025 is 52025444902.

It is not a de Polignac number, because 20944452025 - 2³ = 20944452017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42597 + ... + 209053.

It is an arithmetic number, because the mean of its divisors is an integer number (1238447520).

Almost surely, 2^20944452025 is an apocalyptic number.

20944452025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20944452025 is a deficient number, since it is larger than the sum of its proper divisors (8778288455).

20944452025 is a wasteful number, since it uses less digits than its factorization.

20944452025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167193 (or 167188 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 20944452025 its reverse (52025444902), we get a palindrome (72969896927).

The spelling of 20944452025 in words is "twenty billion, nine hundred forty-four million, four hundred fifty-two thousand, twenty-five".