82055211901 has 4 divisors (see below), whose sum is σ = 88367151292. Its totient is φ = 75743272512.

The previous prime is 82055211851. The next prime is 82055211911. The reversal of 82055211901 is 10911255028.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27847265625 + 54207946276 = 166875^2 + 232826^2 .

It is a cyclic number.

It is not a de Polignac number, because 82055211901 - 2¹¹ = 82055209853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82055211911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3155969676 + ... + 3155969701.

It is an arithmetic number, because the mean of its divisors is an integer number (22091787823).

Almost surely, 2^82055211901 is an apocalyptic number.

It is an amenable number.

82055211901 is a deficient number, since it is larger than the sum of its proper divisors (6311939391).

82055211901 is a wasteful number, since it uses less digits than its factorization.

82055211901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311939390.

The product of its (nonzero) digits is 7200, while the sum is 34.

Adding to 82055211901 its reverse (10911255028), we get a palindrome (92966466929).

The spelling of 82055211901 in words is "eighty-two billion, fifty-five million, two hundred eleven thousand, nine hundred one".