22252506 has 8 divisors (see below), whose sum is σ = 44505024. Its totient is φ = 7417500.

The previous prime is 22252493. The next prime is 22252511. The reversal of 22252506 is 60525222.

It is a sphenic number, since it is the product of 3 distinct primes.

22252506 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854370 + ... + 1854381.

It is an arithmetic number, because the mean of its divisors is an integer number (5563128).

Almost surely, 2^22252506 is an apocalyptic number.

22252506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22252506 is a wasteful number, since it uses less digits than its factorization.

22252506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708756.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 22252506 is about 4717.2561940179. The cubic root of 22252506 is about 281.2718754343.

Adding to 22252506 its reverse (60525222), we get a palindrome (82777728).

The spelling of 22252506 in words is "twenty-two million, two hundred fifty-two thousand, five hundred six".