22057513 has 8 divisors (see below), whose sum is σ = 22811400. Its totient is φ = 21312000.

The previous prime is 22057507. The next prime is 22057531. The reversal of 22057513 is 31575022.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 21790224 = 517^2 + 4668^2 .

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

It is not a de Polignac number, because 22057513 - 2⁵ = 22057481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22057543) 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, 3513 + ... + 7513.

It is an arithmetic number, because the mean of its divisors is an integer number (2851425).

Almost surely, 2^22057513 is an apocalyptic number.

It is an amenable number.

22057513 is a deficient number, since it is larger than the sum of its proper divisors (753887).

22057513 is a wasteful number, since it uses less digits than its factorization.

22057513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187.

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

The square root of 22057513 is about 4696.5426645566. The cubic root of 22057513 is about 280.4478928547.

The spelling of 22057513 in words is "twenty-two million, fifty-seven thousand, five hundred thirteen".