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22528361 is a prime number
BaseRepresentation
bin101010111110…
…0000101101001
31120101120002202
41111330011221
521231401421
62122505545
7362326232
oct125740551
946346082
1022528361
1111797989
1276652b5
13488a1bb
142dc6089
151ea010b
hex157c169

22528361 has 2 divisors, whose sum is σ = 22528362. Its totient is φ = 22528360.

The previous prime is 22528321. The next prime is 22528367. The reversal of 22528361 is 16382522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15452761 + 7075600 = 3931^2 + 2660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22528361 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22528367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11264180 + 11264181.

It is an arithmetic number, because the mean of its divisors is an integer number (11264181).

Almost surely, 222528361 is an apocalyptic number.

It is an amenable number.

22528361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22528361 is an equidigital number, since it uses as much as digits as its factorization.

22528361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 22528361 is about 4746.4050606749. The cubic root of 22528361 is about 282.4293754067.

The spelling of 22528361 in words is "twenty-two million, five hundred twenty-eight thousand, three hundred sixty-one".