22500425 has 12 divisors (see below), whose sum is σ = 28285020. Its totient is φ = 17752320.

The previous prime is 22500419. The next prime is 22500437. The reversal of 22500425 is 52400522.

It can be written as a sum of positive squares in 6 ways, for example, as 4826809 + 17673616 = 2197^2 + 4204^2 .

It is not a de Polignac number, because 22500425 - 2¹⁶ = 22434889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22500397 and 22500406.

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, 4340 + ... + 7989.

It is an arithmetic number, because the mean of its divisors is an integer number (2357085).

Almost surely, 2^22500425 is an apocalyptic number.

22500425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22500425 is a deficient number, since it is larger than the sum of its proper divisors (5784595).

22500425 is a wasteful number, since it uses less digits than its factorization.

22500425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412 (or 12407 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22500425 is about 4743.4612889745. The cubic root of 22500425 is about 282.3125861656.

Adding to 22500425 its reverse (52400522), we get a palindrome (74900947).

The spelling of 22500425 in words is "twenty-two million, five hundred thousand, four hundred twenty-five".