22061255 has 8 divisors (see below), whose sum is σ = 27624672. Its totient is φ = 16881568.

The previous prime is 22061227. The next prime is 22061269. The reversal of 22061255 is 55216022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22061255 - 2¹⁸ = 21799111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22061255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95804 + ... + 96033.

It is an arithmetic number, because the mean of its divisors is an integer number (3453084).

Almost surely, 2^22061255 is an apocalyptic number.

22061255 is a deficient number, since it is larger than the sum of its proper divisors (5563417).

22061255 is a wasteful number, since it uses less digits than its factorization.

22061255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191865.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 22061255 is about 4696.9410258167. The cubic root of 22061255 is about 280.4637510444.

Adding to 22061255 its reverse (55216022), we get a palindrome (77277277).

The spelling of 22061255 in words is "twenty-two million, sixty-one thousand, two hundred fifty-five".