26256001 has 4 divisors (see below), whose sum is σ = 26297604. Its totient is φ = 26214400.

The previous prime is 26255993. The next prime is 26256017. The reversal of 26256001 is 10065262.

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 23775376 + 2480625 = 4876^2 + 1575^2 .

It is a 3-Lehmer number, since φ(26256001) divides (26256001-1)³.

It is a cyclic number.

It is not a de Polignac number, because 26256001 - 2³ = 26255993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26256701) 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, 19840 + ... + 21121.

It is an arithmetic number, because the mean of its divisors is an integer number (6574401).

Almost surely, 2^26256001 is an apocalyptic number.

It is an amenable number.

26256001 is a deficient number, since it is larger than the sum of its proper divisors (41603).

26256001 is an equidigital number, since it uses as much as digits as its factorization.

26256001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41602.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 26256001 is about 5124.0609871468. The cubic root of 26256001 is about 297.2187431987.

The spelling of 26256001 in words is "twenty-six million, two hundred fifty-six thousand, one".