22455001 has 2 divisors, whose sum is σ = 22455002. Its totient is φ = 22455000.

The previous prime is 22454989. The next prime is 22455029. The reversal of 22455001 is 10055422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12595401 + 9859600 = 3549^2 + 3140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22455001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22455001.

It is not a weakly prime, because it can be changed into another prime (22455031) 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, 11227500 + 11227501.

It is an arithmetic number, because the mean of its divisors is an integer number (11227501).

Almost surely, 2^22455001 is an apocalyptic number.

It is an amenable number.

22455001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22455001 is an equidigital number, since it uses as much as digits as its factorization.

22455001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22455001 is about 4738.6708051942. The cubic root of 22455001 is about 282.1224800354.

It can be divided in two parts, 224 and 55001, that added together give a square (55225 = 235²).

The spelling of 22455001 in words is "twenty-two million, four hundred fifty-five thousand, one".