22503007 has 4 divisors (see below), whose sum is σ = 22514400. Its totient is φ = 22491616.

The previous prime is 22503001. The next prime is 22503017. The reversal of 22503007 is 70030522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22503007 - 2³ = 22502999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22503001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882 + ... + 6967.

It is an arithmetic number, because the mean of its divisors is an integer number (5628600).

Almost surely, 2^22503007 is an apocalyptic number.

22503007 is a deficient number, since it is larger than the sum of its proper divisors (11393).

22503007 is an equidigital number, since it uses as much as digits as its factorization.

22503007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11392.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 22503007 is about 4743.7334452939. The cubic root of 22503007 is about 282.3233845278.

Adding to 22503007 its reverse (70030522), we get a palindrome (92533529).

The spelling of 22503007 in words is "twenty-two million, five hundred three thousand, seven".