22015125 has 64 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 10656000.

The previous prime is 22015079. The next prime is 22015127. The reversal of 22015125 is 52151022.

It is not a de Polignac number, because 22015125 - 2⁹ = 22014613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22015098 and 22015107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22015127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36829 + ... + 37421.

It is an arithmetic number, because the mean of its divisors is an integer number (694980).

Almost surely, 2^22015125 is an apocalyptic number.

22015125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22015125 is an abundant number, since it is smaller than the sum of its proper divisors (22463595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22015125 is a wasteful number, since it uses less digits than its factorization.

22015125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 22015125 is about 4692.0278132168. The cubic root of 22015125 is about 280.2681317569.

Adding to 22015125 its reverse (52151022), we get a palindrome (74166147).

The spelling of 22015125 in words is "twenty-two million, fifteen thousand, one hundred twenty-five".