22756001 has 4 divisors (see below), whose sum is σ = 22790292. Its totient is φ = 22721712.

The previous prime is 22755991. The next prime is 22756003. The reversal of 22756001 is 10065722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16120225 + 6635776 = 4015^2 + 2576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22756001 - 2¹⁸ = 22493857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22756003) by changing a digit.

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, 16130 + ... + 17483.

It is an arithmetic number, because the mean of its divisors is an integer number (5697573).

Almost surely, 2^22756001 is an apocalyptic number.

It is an amenable number.

22756001 is a deficient number, since it is larger than the sum of its proper divisors (34291).

22756001 is an equidigital number, since it uses as much as digits as its factorization.

22756001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34290.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 22756001 is about 4770.3250413363. The cubic root of 22756001 is about 283.3774674810.

The spelling of 22756001 in words is "twenty-two million, seven hundred fifty-six thousand, one".