55145134199 has 2 divisors, whose sum is σ = 55145134200. Its totient is φ = 55145134198.

The previous prime is 55145134171. The next prime is 55145134223. The reversal of 55145134199 is 99143154155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55145134199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55145130199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572567099 + 27572567100.

It is an arithmetic number, because the mean of its divisors is an integer number (27572567100).

Almost surely, 2^55145134199 is an apocalyptic number.

55145134199 is a deficient number, since it is larger than the sum of its proper divisors (1).

55145134199 is an equidigital number, since it uses as much as digits as its factorization.

55145134199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 47.

The spelling of 55145134199 in words is "fifty-five billion, one hundred forty-five million, one hundred thirty-four thousand, one hundred ninety-nine".