22252425 has 48 divisors (see below), whose sum is σ = 41039040. Its totient is φ = 10563840.

The previous prime is 22252423. The next prime is 22252427. The reversal of 22252425 is 52425222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22252423) and next prime (22252427).

It is not a de Polignac number, because 22252425 - 2¹ = 22252423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22252395 and 22252404.

It is not an unprimeable number, because it can be changed into a prime (22252423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27882 + ... + 28668.

It is an arithmetic number, because the mean of its divisors is an integer number (854980).

Almost surely, 2^22252425 is an apocalyptic number.

22252425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22252425 is a deficient number, since it is larger than the sum of its proper divisors (18786615).

22252425 is a wasteful number, since it uses less digits than its factorization.

22252425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 837 counting only the distinct ones).

The product of its digits is 3200, while the sum is 24.

The square root of 22252425 is about 4717.2476085107. The cubic root of 22252425 is about 281.2715341536.

Adding to 22252425 its reverse (52425222), we get a palindrome (74677647).

The spelling of 22252425 in words is "twenty-two million, two hundred fifty-two thousand, four hundred twenty-five".