26265520 has 40 divisors (see below), whose sum is σ = 61295184. Its totient is φ = 10467072.

The previous prime is 26265511. The next prime is 26265521. The reversal of 26265520 is 2556262.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (26265521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31347 + ... + 32173.

Almost surely, 2^26265520 is an apocalyptic number.

26265520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26265520 is an abundant number, since it is smaller than the sum of its proper divisors (35029664).

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

26265520 is a wasteful number, since it uses less digits than its factorization.

26265520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 26265520 is about 5124.9897560873. The cubic root of 26265520 is about 297.2546573170.

The spelling of 26265520 in words is "twenty-six million, two hundred sixty-five thousand, five hundred twenty".