26016221 has 8 divisors (see below), whose sum is σ = 32435904. Its totient is φ = 20272320.

The previous prime is 26016209. The next prime is 26016233. The reversal of 26016221 is 12261062.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26016209) and next prime (26016233).

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 26016221 - 2⁶ = 26016157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26016193 and 26016202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26016241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168860 + ... + 169013.

It is an arithmetic number, because the mean of its divisors is an integer number (4054488).

Almost surely, 2^26016221 is an apocalyptic number.

It is an amenable number.

26016221 is a deficient number, since it is larger than the sum of its proper divisors (6419683).

26016221 is a wasteful number, since it uses less digits than its factorization.

26016221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337891.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 26016221 is about 5100.6098654965. The cubic root of 26016221 is about 296.3112025570.

Adding to 26016221 its reverse (12261062), we get a palindrome (38277283).

The spelling of 26016221 in words is "twenty-six million, sixteen thousand, two hundred twenty-one".