22998825 has 18 divisors (see below), whose sum is σ = 41193854. Its totient is φ = 12265920.

The previous prime is 22998821. The next prime is 22998853. The reversal of 22998825 is 52889922.

It can be written as a sum of positive squares in 3 ways, for example, as 2396304 + 20602521 = 1548^2 + 4539^2 .

It is not a de Polignac number, because 22998825 - 2² = 22998821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22998821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 50884 + ... + 51333.

Almost surely, 2^22998825 is an apocalyptic number.

22998825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22998825 is a deficient number, since it is larger than the sum of its proper divisors (18195029).

22998825 is a wasteful number, since it uses less digits than its factorization.

22998825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102233 (or 102225 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 22998825 is about 4795.7090195299. The cubic root of 22998825 is about 284.3818550857.

The spelling of 22998825 in words is "twenty-two million, nine hundred ninety-eight thousand, eight hundred twenty-five".