22321925 has 6 divisors (see below), whose sum is σ = 27679218. Its totient is φ = 17857520.

The previous prime is 22321919. The next prime is 22321927. The reversal of 22321925 is 52912322.

It can be written as a sum of positive squares in 3 ways, for example, as 6145441 + 16176484 = 2479^2 + 4022^2 .

It is not a de Polignac number, because 22321925 - 2⁶ = 22321861 is a prime.

It is a super-3 number, since 3×22321925³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22321894 and 22321903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446414 + ... + 446463.

It is an arithmetic number, because the mean of its divisors is an integer number (4613203).

Almost surely, 2^22321925 is an apocalyptic number.

22321925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22321925 is a deficient number, since it is larger than the sum of its proper divisors (5357293).

22321925 is an equidigital number, since it uses as much as digits as its factorization.

22321925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892887 (or 892882 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 22321925 is about 4724.6084493850. The cubic root of 22321925 is about 281.5640574082.

The spelling of 22321925 in words is "twenty-two million, three hundred twenty-one thousand, nine hundred twenty-five".