26561992 has 32 divisors (see below), whose sum is σ = 51004800. Its totient is φ = 12965184.

The previous prime is 26561959. The next prime is 26561993. The reversal of 26561992 is 29916562.

It is not an unprimeable number, because it can be changed into a prime (26561993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72193 + ... + 72559.

It is an arithmetic number, because the mean of its divisors is an integer number (1593900).

Almost surely, 2^26561992 is an apocalyptic number.

It is an amenable number.

26561992 is a deficient number, since it is larger than the sum of its proper divisors (24442808).

26561992 is a wasteful number, since it uses less digits than its factorization.

26561992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 561 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 26561992 is about 5153.8327485474. The cubic root of 26561992 is about 298.3688958851.

The spelling of 26561992 in words is "twenty-six million, five hundred sixty-one thousand, nine hundred ninety-two".