22000625 has 10 divisors (see below), whose sum is σ = 27492762. Its totient is φ = 17600000.

The previous prime is 22000621. The next prime is 22000633. The reversal of 22000625 is 52600022.

It can be written as a sum of positive squares in 5 ways, for example, as 7795264 + 14205361 = 2792^2 + 3769^2 .

It is not a de Polignac number, because 22000625 - 2² = 22000621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16976 + ... + 18225.

Almost surely, 2^22000625 is an apocalyptic number.

22000625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22000625 is a deficient number, since it is larger than the sum of its proper divisors (5492137).

22000625 is an frugal number, since it uses more digits than its factorization.

22000625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35221 (or 35206 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22000625 is about 4690.4823845741. The cubic root of 22000625 is about 280.2065864867.

Adding to 22000625 its reverse (52600022), we get a palindrome (74600647).

The spelling of 22000625 in words is "twenty-two million, six hundred twenty-five", and thus it is an aban number.