20025622 has 4 divisors (see below), whose sum is σ = 30038436. Its totient is φ = 10012810.

The previous prime is 20025613. The next prime is 20025637. The reversal of 20025622 is 22652002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22652002 = 2 ⋅11326001.

It is a self number, because there is not a number n which added to its sum of digits gives 20025622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006404 + ... + 5006407.

It is an arithmetic number, because the mean of its divisors is an integer number (7509609).

Almost surely, 2^20025622 is an apocalyptic number.

20025622 is a deficient number, since it is larger than the sum of its proper divisors (10012814).

20025622 is a wasteful number, since it uses less digits than its factorization.

20025622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012813.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20025622 is about 4474.9996648045. Note that the first 3 decimals coincide. The cubic root of 20025622 is about 271.5576268755.

Adding to 20025622 its reverse (22652002), we get a palindrome (42677624).

The spelling of 20025622 in words is "twenty million, twenty-five thousand, six hundred twenty-two".