22425066 has 32 divisors (see below), whose sum is σ = 50544000. Its totient is φ = 7368480.

The previous prime is 22425047. The next prime is 22425077. The reversal of 22425066 is 66052422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (1579500).

Almost surely, 2^22425066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22425066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25272000).

22425066 is an abundant number, since it is smaller than the sum of its proper divisors (28118934).

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

22425066 is a wasteful number, since it uses less digits than its factorization.

22425066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931 (or 5925 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 22425066 is about 4735.5111656504. The cubic root of 22425066 is about 281.9970574614.

Adding to 22425066 its reverse (66052422), we get a palindrome (88477488).

The spelling of 22425066 in words is "twenty-two million, four hundred twenty-five thousand, sixty-six".