22503065 has 8 divisors (see below), whose sum is σ = 29080968. Its totient is φ = 16617600.

The previous prime is 22503031. The next prime is 22503073. The reversal of 22503065 is 56030522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2647129 + 19855936 = 1627^2 + 4456^2 .

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

It is not a de Polignac number, because 22503065 - 2⁶ = 22503001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22503065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173036 + ... + 173165.

It is an arithmetic number, because the mean of its divisors is an integer number (3635121).

Almost surely, 2^22503065 is an apocalyptic number.

It is an amenable number.

22503065 is a deficient number, since it is larger than the sum of its proper divisors (6577903).

22503065 is a wasteful number, since it uses less digits than its factorization.

22503065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346219.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 22503065 is about 4743.7395586183. The cubic root of 22503065 is about 282.3236270842.

Adding to 22503065 its reverse (56030522), we get a palindrome (78533587).

The spelling of 22503065 in words is "twenty-two million, five hundred three thousand, sixty-five".