22548737 has 2 divisors, whose sum is σ = 22548738. Its totient is φ = 22548736.

The previous prime is 22548731. The next prime is 22548787. The reversal of 22548737 is 73784522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22193521 + 355216 = 4711^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 22548737 - 2⁸ = 22548481 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22548737.

It is not a weakly prime, because it can be changed into another prime (22548731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11274368 + 11274369.

It is an arithmetic number, because the mean of its divisors is an integer number (11274369).

Almost surely, 2^22548737 is an apocalyptic number.

It is an amenable number.

22548737 is a deficient number, since it is larger than the sum of its proper divisors (1).

22548737 is an equidigital number, since it uses as much as digits as its factorization.

22548737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 38.

The square root of 22548737 is about 4748.5510421601. The cubic root of 22548737 is about 282.5144984336.

The spelling of 22548737 in words is "twenty-two million, five hundred forty-eight thousand, seven hundred thirty-seven".