26215730055 has 32 divisors (see below), whose sum is σ = 46612440000. Its totient is φ = 13979713536.

The previous prime is 26215730029. The next prime is 26215730059. The reversal of 26215730055 is 55003751262.

It is not a de Polignac number, because 26215730055 - 2²¹ = 26213632903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26215730059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1781287 + ... + 1795943.

It is an arithmetic number, because the mean of its divisors is an integer number (1456638750).

Almost surely, 2^26215730055 is an apocalyptic number.

26215730055 is a deficient number, since it is larger than the sum of its proper divisors (20396709945).

26215730055 is a wasteful number, since it uses less digits than its factorization.

26215730055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27920 (or 27914 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 26215730055 in words is "twenty-six billion, two hundred fifteen million, seven hundred thirty thousand, fifty-five".