26506263 has 8 divisors (see below), whose sum is σ = 40390528. Its totient is φ = 15146424.

The previous prime is 26506253. The next prime is 26506267. The reversal of 26506263 is 36260562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26506263 - 2⁵ = 26506231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26506263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26506267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631081 + ... + 631122.

It is an arithmetic number, because the mean of its divisors is an integer number (5048816).

Almost surely, 2^26506263 is an apocalyptic number.

26506263 is a deficient number, since it is larger than the sum of its proper divisors (13884265).

26506263 is a wasteful number, since it uses less digits than its factorization.

26506263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262213.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 26506263 is about 5148.4233508910. The cubic root of 26506263 is about 298.1600832008.

The spelling of 26506263 in words is "twenty-six million, five hundred six thousand, two hundred sixty-three".