55320432024391 has 2 divisors, whose sum is σ = 55320432024392. Its totient is φ = 55320432024390.

The previous prime is 55320432024349. The next prime is 55320432024421. The reversal of 55320432024391 is 19342023402355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55320432024391 - 2¹¹ = 55320432022343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55320432024491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27660216012195 + 27660216012196.

It is an arithmetic number, because the mean of its divisors is an integer number (27660216012196).

Almost surely, 2^{55320432024391} is an apocalyptic number.

55320432024391 is a deficient number, since it is larger than the sum of its proper divisors (1).

55320432024391 is an equidigital number, since it uses as much as digits as its factorization.

55320432024391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 55320432024391 in words is "fifty-five trillion, three hundred twenty billion, four hundred thirty-two million, twenty-four thousand, three hundred ninety-one".