26500965 has 24 divisors (see below), whose sum is σ = 43502304. Its totient is φ = 13776000.

The previous prime is 26500961. The next prime is 26500993. The reversal of 26500965 is 56900562.

It is not a de Polignac number, because 26500965 - 2² = 26500961 is a prime.

It is a super-2 number, since 2×26500965² = 1404602291862450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26500961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24690 + ... + 25740.

It is an arithmetic number, because the mean of its divisors is an integer number (1812596).

Almost surely, 2^26500965 is an apocalyptic number.

It is an amenable number.

26500965 is a deficient number, since it is larger than the sum of its proper divisors (17001339).

26500965 is a wasteful number, since it uses less digits than its factorization.

26500965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 26500965 is about 5147.9087987259. The cubic root of 26500965 is about 298.1402167340.

The spelling of 26500965 in words is "twenty-six million, five hundred thousand, nine hundred sixty-five".