55342011391 has 2 divisors, whose sum is σ = 55342011392. Its totient is φ = 55342011390.

The previous prime is 55342011383. The next prime is 55342011397. The reversal of 55342011391 is 19311024355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55342011391 - 2³ = 55342011383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55342011397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27671005695 + 27671005696.

It is an arithmetic number, because the mean of its divisors is an integer number (27671005696).

Almost surely, 2^55342011391 is an apocalyptic number.

55342011391 is a deficient number, since it is larger than the sum of its proper divisors (1).

55342011391 is an equidigital number, since it uses as much as digits as its factorization.

55342011391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 55342011391 in words is "fifty-five billion, three hundred forty-two million, eleven thousand, three hundred ninety-one".