26313551 has 4 divisors (see below), whose sum is σ = 28705704. Its totient is φ = 23921400.

The previous prime is 26313503. The next prime is 26313559. The reversal of 26313551 is 15531362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26313551 - 2²² = 22119247 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 26313551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26313559) 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, 1196060 + ... + 1196081.

It is an arithmetic number, because the mean of its divisors is an integer number (7176426).

Almost surely, 2^26313551 is an apocalyptic number.

26313551 is a deficient number, since it is larger than the sum of its proper divisors (2392153).

26313551 is a wasteful number, since it uses less digits than its factorization.

26313551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392152.

The product of its digits is 2700, while the sum is 26.

The square root of 26313551 is about 5129.6735763594. The cubic root of 26313551 is about 297.4357406582.

The spelling of 26313551 in words is "twenty-six million, three hundred thirteen thousand, five hundred fifty-one".