22057757 has 6 divisors (see below), whose sum is σ = 22208958. Its totient is φ = 21907512.

The previous prime is 22057747. The next prime is 22057769. The reversal of 22057757 is 75775022.

It can be written as a sum of positive squares in only one way, i.e., 14295961 + 7761796 = 3781^2 + 2786^2 .

It is not a de Polignac number, because 22057757 - 2¹⁴ = 22041373 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 (22057747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39323 + ... + 39879.

It is an arithmetic number, because the mean of its divisors is an integer number (3701493).

Almost surely, 2^22057757 is an apocalyptic number.

It is an amenable number.

22057757 is a deficient number, since it is larger than the sum of its proper divisors (151201).

22057757 is an frugal number, since it uses more digits than its factorization.

22057757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 22057757 is about 4696.5686410400. The cubic root of 22057757 is about 280.4489269548.

The spelling of 22057757 in words is "twenty-two million, fifty-seven thousand, seven hundred fifty-seven".