55732773911 has 2 divisors, whose sum is σ = 55732773912. Its totient is φ = 55732773910.

The previous prime is 55732773883. The next prime is 55732773913. The reversal of 55732773911 is 11937723755.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55732773911 - 2⁶ = 55732773847 is a prime.

It is a super-2 number, since 2×55732773911² (a number of 22 digits) contains 22 as substring.

Together with 55732773913, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55732773911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55732773913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27866386955 + 27866386956.

It is an arithmetic number, because the mean of its divisors is an integer number (27866386956).

Almost surely, 2^55732773911 is an apocalyptic number.

55732773911 is a deficient number, since it is larger than the sum of its proper divisors (1).

55732773911 is an equidigital number, since it uses as much as digits as its factorization.

55732773911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1389150, while the sum is 50.

The spelling of 55732773911 in words is "fifty-five billion, seven hundred thirty-two million, seven hundred seventy-three thousand, nine hundred eleven".