22250518 has 8 divisors (see below), whose sum is σ = 35339112. Its totient is φ = 10470816.

The previous prime is 22250509. The next prime is 22250521. The reversal of 22250518 is 81505222.

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

It is a junction number, because it is equal to n+sod(n) for n = 22250492 and 22250501.

It is a congruent 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, 327180 + ... + 327247.

It is an arithmetic number, because the mean of its divisors is an integer number (4417389).

Almost surely, 2^22250518 is an apocalyptic number.

22250518 is a deficient number, since it is larger than the sum of its proper divisors (13088594).

22250518 is a wasteful number, since it uses less digits than its factorization.

22250518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654446.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 22250518 is about 4717.0454735989. The cubic root of 22250518 is about 281.2634990722.

The spelling of 22250518 in words is "twenty-two million, two hundred fifty thousand, five hundred eighteen".