22156125 has 16 divisors (see below), whose sum is σ = 36868416. Its totient is φ = 11816400.

The previous prime is 22156111. The next prime is 22156133. The reversal of 22156125 is 52165122.

It is a happy number.

It is not a de Polignac number, because 22156125 - 2⁸ = 22155869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22156095 and 22156104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29167 + ... + 29916.

It is an arithmetic number, because the mean of its divisors is an integer number (2304276).

Almost surely, 2^22156125 is an apocalyptic number.

22156125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22156125 is a deficient number, since it is larger than the sum of its proper divisors (14712291).

22156125 is an equidigital number, since it uses as much as digits as its factorization.

22156125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59101 (or 59091 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 22156125 is about 4707.0293179457. The cubic root of 22156125 is about 280.8652021663.

The spelling of 22156125 in words is "twenty-two million, one hundred fifty-six thousand, one hundred twenty-five".