26155812 has 12 divisors (see below), whose sum is σ = 61030256. Its totient is φ = 8718600.

The previous prime is 26155783. The next prime is 26155813. The reversal of 26155812 is 21855162.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 26155812.

It is not an unprimeable number, because it can be changed into a prime (26155813) 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, 1089814 + ... + 1089837.

Almost surely, 2^26155812 is an apocalyptic number.

It is an amenable number.

26155812 is an abundant number, since it is smaller than the sum of its proper divisors (34874444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26155812 is a wasteful number, since it uses less digits than its factorization.

26155812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179658 (or 2179656 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 26155812 is about 5114.2753152328. The cubic root of 26155812 is about 296.8402137930.

The spelling of 26155812 in words is "twenty-six million, one hundred fifty-five thousand, eight hundred twelve".