22057501 has 4 divisors (see below), whose sum is σ = 22066912. Its totient is φ = 22048092.

The previous prime is 22057489. The next prime is 22057507. The reversal of 22057501 is 10575022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22057501 - 2⁹ = 22056989 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 (22057507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1930 + ... + 6916.

It is an arithmetic number, because the mean of its divisors is an integer number (5516728).

Almost surely, 2^22057501 is an apocalyptic number.

It is an amenable number.

22057501 is a deficient number, since it is larger than the sum of its proper divisors (9411).

22057501 is an equidigital number, since it uses as much as digits as its factorization.

22057501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 22057501 is about 4696.5413870209. The cubic root of 22057501 is about 280.4478419971.

The spelling of 22057501 in words is "twenty-two million, fifty-seven thousand, five hundred one".