22501003 has 8 divisors (see below), whose sum is σ = 25744608. Its totient is φ = 19264704.

The previous prime is 22500967. The next prime is 22501019. The reversal of 22501003 is 30010522.

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

It is a cyclic number.

It is not a de Polignac number, because 22501003 - 2¹⁷ = 22369931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22501093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9375 + ... + 11527.

It is an arithmetic number, because the mean of its divisors is an integer number (3218076).

Almost surely, 2^22501003 is an apocalyptic number.

22501003 is a deficient number, since it is larger than the sum of its proper divisors (3243605).

22501003 is a wasteful number, since it uses less digits than its factorization.

22501003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 22501003 is about 4743.5222145574. The cubic root of 22501003 is about 282.3150035315.

Adding to 22501003 its reverse (30010522), we get a palindrome (52511525).

It can be divided in two parts, 2250 and 1003, that multiplied together give a triangular number (2256750 = T₂₁₂₄).

The spelling of 22501003 in words is "twenty-two million, five hundred one thousand, three".