22429825 has 12 divisors (see below), whose sum is σ = 30341808. Its totient is φ = 16312400.

The previous prime is 22429819. The next prime is 22429831. The reversal of 22429825 is 52892422.

It is an interprime number because it is at equal distance from previous prime (22429819) and next prime (22429831).

It is not a de Polignac number, because 22429825 - 2⁷ = 22429697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40507 + ... + 41056.

It is an arithmetic number, because the mean of its divisors is an integer number (2528484).

Almost surely, 2^22429825 is an apocalyptic number.

22429825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22429825 is a deficient number, since it is larger than the sum of its proper divisors (7911983).

22429825 is a wasteful number, since it uses less digits than its factorization.

22429825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81584 (or 81579 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 22429825 is about 4736.0136190683. The cubic root of 22429825 is about 282.0170043231.

The spelling of 22429825 in words is "twenty-two million, four hundred twenty-nine thousand, eight hundred twenty-five".