22180057 has 8 divisors (see below), whose sum is σ = 23336712. Its totient is φ = 21052800.

The previous prime is 22180031. The next prime is 22180063. The reversal of 22180057 is 75008122.

It can be written as a sum of positive squares in 4 ways, for example, as 52441 + 22127616 = 229^2 + 4704^2 .

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 22180057 - 2¹⁵ = 22147289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22180357) 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, 5794 + ... + 8827.

It is an arithmetic number, because the mean of its divisors is an integer number (2917089).

Almost surely, 2^22180057 is an apocalyptic number.

It is an amenable number.

22180057 is a deficient number, since it is larger than the sum of its proper divisors (1156655).

22180057 is a wasteful number, since it uses less digits than its factorization.

22180057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14699.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 22180057 is about 4709.5707872374. The cubic root of 22180057 is about 280.9662915539.

Adding to 22180057 its reverse (75008122), we get a palindrome (97188179).

The spelling of 22180057 in words is "twenty-two million, one hundred eighty thousand, fifty-seven".