22500225025 has 24 divisors (see below), whose sum is σ = 28273190400. Its totient is φ = 17759913600.

The previous prime is 22500225023. The next prime is 22500225031. The reversal of 22500225025 is 52052200522.

It is not a de Polignac number, because 22500225025 - 2¹ = 22500225023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22500225023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3692181 + ... + 3698269.

It is an arithmetic number, because the mean of its divisors is an integer number (1178049600).

Almost surely, 2^22500225025 is an apocalyptic number.

22500225025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22500225025 is a deficient number, since it is larger than the sum of its proper divisors (5772965375).

22500225025 is a wasteful number, since it uses less digits than its factorization.

22500225025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8049 (or 8044 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

Adding to 22500225025 its reverse (52052200522), we get a palindrome (74552425547).

The spelling of 22500225025 in words is "twenty-two billion, five hundred million, two hundred twenty-five thousand, twenty-five".