22455065 has 4 divisors (see below), whose sum is σ = 26946084. Its totient is φ = 17964048.

The previous prime is 22455047. The next prime is 22455071. The reversal of 22455065 is 56055422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56055422 = 2 ⋅28027711.

It can be written as a sum of positive squares in 2 ways, for example, as 16516096 + 5938969 = 4064^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 22455065 - 2⁶ = 22455001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2245502 + ... + 2245511.

It is an arithmetic number, because the mean of its divisors is an integer number (6736521).

Almost surely, 2^22455065 is an apocalyptic number.

It is an amenable number.

22455065 is a deficient number, since it is larger than the sum of its proper divisors (4491019).

22455065 is an equidigital number, since it uses as much as digits as its factorization.

22455065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491018.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 22455065 is about 4738.6775581379. The cubic root of 22455065 is about 282.1227480651.

The spelling of 22455065 in words is "twenty-two million, four hundred fifty-five thousand, sixty-five".