26261564 has 24 divisors (see below), whose sum is σ = 53944800. Its totient is φ = 10950336.

The previous prime is 26261513. The next prime is 26261567. The reversal of 26261564 is 46516262.

It is a self number, because there is not a number n which added to its sum of digits gives 26261564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26261567) 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, 11639 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (2247700).

Almost surely, 2^26261564 is an apocalyptic number.

It is an amenable number.

26261564 is an abundant number, since it is smaller than the sum of its proper divisors (27683236).

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

26261564 is a wasteful number, since it uses less digits than its factorization.

26261564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25397 (or 25395 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 26261564 is about 5124.6037895627. The cubic root of 26261564 is about 297.2397328270.

The spelling of 26261564 in words is "twenty-six million, two hundred sixty-one thousand, five hundred sixty-four".