22501663 has 4 divisors (see below), whose sum is σ = 22516648. Its totient is φ = 22486680.

The previous prime is 22501657. The next prime is 22501669. The reversal of 22501663 is 36610522.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22501657) and next prime (22501669).

It is a cyclic number.

It is not a de Polignac number, because 22501663 - 2⁵ = 22501631 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 (22501669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4953 + ... + 8338.

It is an arithmetic number, because the mean of its divisors is an integer number (5629162).

Almost surely, 2^22501663 is an apocalyptic number.

22501663 is a deficient number, since it is larger than the sum of its proper divisors (14985).

22501663 is a wasteful number, since it uses less digits than its factorization.

22501663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14984.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22501663 is about 4743.5917826052. The cubic root of 22501663 is about 282.3177637948.

The spelling of 22501663 in words is "twenty-two million, five hundred one thousand, six hundred sixty-three".