22755013 has 8 divisors (see below), whose sum is σ = 23241816. Its totient is φ = 22272000.

The previous prime is 22755011. The next prime is 22755067. The reversal of 22755013 is 31055722.

It can be written as a sum of positive squares in 4 ways, for example, as 1979649 + 20775364 = 1407^2 + 4558^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22755013 - 2¹ = 22755011 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 (22755011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13413 + ... + 15013.

It is an arithmetic number, because the mean of its divisors is an integer number (2905227).

Almost surely, 2^22755013 is an apocalyptic number.

It is an amenable number.

22755013 is a deficient number, since it is larger than the sum of its proper divisors (486803).

22755013 is a wasteful number, since it uses less digits than its factorization.

22755013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 22755013 is about 4770.2214833276. The cubic root of 22755013 is about 283.3733662772.

The spelling of 22755013 in words is "twenty-two million, seven hundred fifty-five thousand, thirteen".