26561532 has 12 divisors (see below), whose sum is σ = 61976936. Its totient is φ = 8853840.

The previous prime is 26561503. The next prime is 26561539. The reversal of 26561532 is 23516562.

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 26561532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26561539) 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, 1106719 + ... + 1106742.

Almost surely, 2^26561532 is an apocalyptic number.

It is an amenable number.

26561532 is an abundant number, since it is smaller than the sum of its proper divisors (35415404).

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

26561532 is a wasteful number, since it uses less digits than its factorization.

26561532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213468 (or 2213466 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 26561532 is about 5153.7881213725. The cubic root of 26561532 is about 298.3671734932.

The spelling of 26561532 in words is "twenty-six million, five hundred sixty-one thousand, five hundred thirty-two".