22252787 has 4 divisors (see below), whose sum is σ = 22272096. Its totient is φ = 22233480.

The previous prime is 22252771. The next prime is 22252793. The reversal of 22252787 is 78725222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22252787 - 2⁴ = 22252771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22252717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7808 + ... + 10269.

It is an arithmetic number, because the mean of its divisors is an integer number (5568024).

Almost surely, 2^22252787 is an apocalyptic number.

22252787 is a deficient number, since it is larger than the sum of its proper divisors (19309).

22252787 is a wasteful number, since it uses less digits than its factorization.

22252787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19308.

The product of its digits is 31360, while the sum is 35.

The square root of 22252787 is about 4717.2859781870. The cubic root of 22252787 is about 281.2730593768.

The spelling of 22252787 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred eighty-seven".