22855901 has 4 divisors (see below), whose sum is σ = 23413404. Its totient is φ = 22298400.

The previous prime is 22855873. The next prime is 22855913. The reversal of 22855901 is 10955822.

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 6895876 + 15960025 = 2626^2 + 3995^2 .

It is a cyclic number.

It is not a de Polignac number, because 22855901 - 2¹⁸ = 22593757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22855961) 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 in 3 ways as a sum of consecutive naturals, for example, 278690 + ... + 278771.

It is an arithmetic number, because the mean of its divisors is an integer number (5853351).

Almost surely, 2^22855901 is an apocalyptic number.

It is an amenable number.

22855901 is a deficient number, since it is larger than the sum of its proper divisors (557503).

22855901 is an equidigital number, since it uses as much as digits as its factorization.

22855901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557502.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 22855901 is about 4780.7845590447. The cubic root of 22855901 is about 283.7915426248.

The spelling of 22855901 in words is "twenty-two million, eight hundred fifty-five thousand, nine hundred one".