22250305 has 16 divisors (see below), whose sum is σ = 33289344. Its totient is φ = 13870080.

The previous prime is 22250251. The next prime is 22250321. The reversal of 22250305 is 50305222.

22250305 = 301² + 302² + ... + 454².

It is not a de Polignac number, because 22250305 - 2¹⁷ = 22119233 is a prime.

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, 28512 + ... + 29281.

It is an arithmetic number, because the mean of its divisors is an integer number (2080584).

Almost surely, 2^22250305 is an apocalyptic number.

It is an amenable number.

22250305 is a deficient number, since it is larger than the sum of its proper divisors (11039039).

22250305 is a wasteful number, since it uses less digits than its factorization.

22250305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57816.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 22250305 is about 4717.0228958528. The cubic root of 22250305 is about 281.2626015753.

Adding to 22250305 its reverse (50305222), we get a palindrome (72555527).

The spelling of 22250305 in words is "twenty-two million, two hundred fifty thousand, three hundred five".