26053520081 has 4 divisors (see below), whose sum is σ = 27424758000. Its totient is φ = 24682282164.

The previous prime is 26053520041. The next prime is 26053520111. The reversal of 26053520081 is 18002535062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26053520081 - 2¹⁰ = 26053519057 is a prime.

It is a super-2 number, since 2×26053520081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26053520041) 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, 685618931 + ... + 685618968.

It is an arithmetic number, because the mean of its divisors is an integer number (6856189500).

Almost surely, 2^26053520081 is an apocalyptic number.

It is an amenable number.

26053520081 is a deficient number, since it is larger than the sum of its proper divisors (1371237919).

26053520081 is a wasteful number, since it uses less digits than its factorization.

26053520081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371237918.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 26053520081 in words is "twenty-six billion, fifty-three million, five hundred twenty thousand, eighty-one".