22501716 has 12 divisors (see below), whose sum is σ = 52504032. Its totient is φ = 7500568.

The previous prime is 22501697. The next prime is 22501723. The reversal of 22501716 is 61710522.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937560 + ... + 937583.

It is an arithmetic number, because the mean of its divisors is an integer number (4375336).

Almost surely, 2^22501716 is an apocalyptic number.

It is an amenable number.

22501716 is an abundant number, since it is smaller than the sum of its proper divisors (30002316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22501716 is a wasteful number, since it uses less digits than its factorization.

22501716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875150 (or 1875148 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 22501716 is about 4743.5973690860. The cubic root of 22501716 is about 282.3179854500.

The spelling of 22501716 in words is "twenty-two million, five hundred one thousand, seven hundred sixteen".