26532556445 has 4 divisors (see below), whose sum is σ = 31839067740. Its totient is φ = 21226045152.

The previous prime is 26532556423. The next prime is 26532556447. The reversal of 26532556445 is 54465523562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54465523562 = 2 ⋅27232761781.

It can be written as a sum of positive squares in 2 ways, for example, as 16231524409 + 10301032036 = 127403^2 + 101494^2 .

It is a cyclic number.

It is not a de Polignac number, because 26532556445 - 2⁶ = 26532556381 is a prime.

It is a super-2 number, since 2×26532556445² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26532556445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26532556447) 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, 2653255640 + ... + 2653255649.

It is an arithmetic number, because the mean of its divisors is an integer number (7959766935).

Almost surely, 2^26532556445 is an apocalyptic number.

It is an amenable number.

26532556445 is a deficient number, since it is larger than the sum of its proper divisors (5306511295).

26532556445 is an equidigital number, since it uses as much as digits as its factorization.

26532556445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306511294.

The product of its digits is 4320000, while the sum is 47.

The spelling of 26532556445 in words is "twenty-six billion, five hundred thirty-two million, five hundred fifty-six thousand, four hundred forty-five".