26195921 has 4 divisors (see below), whose sum is σ = 26362932. Its totient is φ = 26028912.

The previous prime is 26195881. The next prime is 26195959. The reversal of 26195921 is 12959162.

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 11296321 + 14899600 = 3361^2 + 3860^2 .

It is a cyclic number.

It is not a de Polignac number, because 26195921 - 2⁶ = 26195857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26195971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83270 + ... + 83583.

It is an arithmetic number, because the mean of its divisors is an integer number (6590733).

Almost surely, 2^26195921 is an apocalyptic number.

It is an amenable number.

26195921 is a deficient number, since it is larger than the sum of its proper divisors (167011).

26195921 is a wasteful number, since it uses less digits than its factorization.

26195921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167010.

The product of its digits is 9720, while the sum is 35.

The square root of 26195921 is about 5118.1950920222. The cubic root of 26195921 is about 296.9918675761.

The spelling of 26195921 in words is "twenty-six million, one hundred ninety-five thousand, nine hundred twenty-one".