22257061 has 2 divisors, whose sum is σ = 22257062. Its totient is φ = 22257060.

The previous prime is 22257049. The next prime is 22257071. The reversal of 22257061 is 16075222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11492100 + 10764961 = 3390^2 + 3281^2 .

It is a cyclic number.

It is not a de Polignac number, because 22257061 - 2⁷ = 22256933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22257071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128530 + 11128531.

It is an arithmetic number, because the mean of its divisors is an integer number (11128531).

Almost surely, 2^22257061 is an apocalyptic number.

It is an amenable number.

22257061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22257061 is an equidigital number, since it uses as much as digits as its factorization.

22257061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 22257061 is about 4717.7389711598. The cubic root of 22257061 is about 281.2910658719.

The spelling of 22257061 in words is "twenty-two million, two hundred fifty-seven thousand, sixty-one".