26685401 has 2 divisors, whose sum is σ = 26685402. Its totient is φ = 26685400.

The previous prime is 26685397. The next prime is 26685433. The reversal of 26685401 is 10458662.

It is an a-pointer prime, because the next prime (26685433) can be obtained adding 26685401 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 6255001 = 4520^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 26685401 - 2² = 26685397 is a prime.

It is a super-2 number, since 2×26685401² = 1424221253061602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26655401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13342700 + 13342701.

It is an arithmetic number, because the mean of its divisors is an integer number (13342701).

Almost surely, 2^26685401 is an apocalyptic number.

It is an amenable number.

26685401 is a deficient number, since it is larger than the sum of its proper divisors (1).

26685401 is an equidigital number, since it uses as much as digits as its factorization.

26685401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 26685401 is about 5165.7914204892. The cubic root of 26685401 is about 298.8302635015.

The spelling of 26685401 in words is "twenty-six million, six hundred eighty-five thousand, four hundred one".