22550057 has 4 divisors (see below), whose sum is σ = 23159556. Its totient is φ = 21940560.

The previous prime is 22550027. The next prime is 22550089. The reversal of 22550057 is 75005522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20757136 + 1792921 = 4556^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 22550057 - 2¹⁶ = 22484521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22550027) 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, 304694 + ... + 304767.

It is an arithmetic number, because the mean of its divisors is an integer number (5789889).

Almost surely, 2^22550057 is an apocalyptic number.

It is an amenable number.

22550057 is a deficient number, since it is larger than the sum of its proper divisors (609499).

22550057 is an equidigital number, since it uses as much as digits as its factorization.

22550057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609498.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 22550057 is about 4748.6900298925. The cubic root of 22550057 is about 282.5200111128.

Adding to 22550057 its reverse (75005522), we get a palindrome (97555579).

The spelling of 22550057 in words is "twenty-two million, five hundred fifty thousand, fifty-seven".