22011425 has 12 divisors (see below), whose sum is σ = 27758640. Its totient is φ = 17309520.

The previous prime is 22011403. The next prime is 22011427. The reversal of 22011425 is 52411022.

It is not a de Polignac number, because 22011425 - 2⁶ = 22011361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22011427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5987 + ... + 8936.

It is an arithmetic number, because the mean of its divisors is an integer number (2313220).

Almost surely, 2^22011425 is an apocalyptic number.

22011425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22011425 is a deficient number, since it is larger than the sum of its proper divisors (5747215).

22011425 is a wasteful number, since it uses less digits than its factorization.

22011425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14992 (or 14987 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22011425 is about 4691.6335108361. The cubic root of 22011425 is about 280.2524296705.

Adding to 22011425 its reverse (52411022), we get a palindrome (74422447).

The spelling of 22011425 in words is "twenty-two million, eleven thousand, four hundred twenty-five".