22712425 has 12 divisors (see below), whose sum is σ = 29820636. Its totient is φ = 17100800.

The previous prime is 22712419. The next prime is 22712441. The reversal of 22712425 is 52421722.

It can be written as a sum of positive squares in 6 ways, for example, as 168921 + 22543504 = 411^2 + 4748^2 .

It is not a de Polignac number, because 22712425 - 2⁷ = 22712297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22712425.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26296 + ... + 27145.

It is an arithmetic number, because the mean of its divisors is an integer number (2485053).

Almost surely, 2^22712425 is an apocalyptic number.

22712425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22712425 is a deficient number, since it is larger than the sum of its proper divisors (7108211).

22712425 is a wasteful number, since it uses less digits than its factorization.

22712425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53468 (or 53463 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 22712425 is about 4765.7554490343. The cubic root of 22712425 is about 283.1964698468.

The spelling of 22712425 in words is "twenty-two million, seven hundred twelve thousand, four hundred twenty-five".