26112261 has 16 divisors (see below), whose sum is σ = 41074688. Its totient is φ = 14439600.

The previous prime is 26112257. The next prime is 26112263. The reversal of 26112261 is 16221162.

It is not a de Polignac number, because 26112261 - 2² = 26112257 is a prime.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26112263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19405 + ... + 20706.

It is an arithmetic number, because the mean of its divisors is an integer number (2567168).

Almost surely, 2^26112261 is an apocalyptic number.

26112261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26112261 is a deficient number, since it is larger than the sum of its proper divisors (14962427).

26112261 is a wasteful number, since it uses less digits than its factorization.

26112261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40152.

The product of its digits is 288, while the sum is 21.

The square root of 26112261 is about 5110.0157534004. The cubic root of 26112261 is about 296.6753699981.

The spelling of 26112261 in words is "twenty-six million, one hundred twelve thousand, two hundred sixty-one".