55212186299 has 2 divisors, whose sum is σ = 55212186300. Its totient is φ = 55212186298.

The previous prime is 55212186259. The next prime is 55212186353. The reversal of 55212186299 is 99268121255.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55212186299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55212186259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27606093149 + 27606093150.

It is an arithmetic number, because the mean of its divisors is an integer number (27606093150).

Almost surely, 2^55212186299 is an apocalyptic number.

55212186299 is a deficient number, since it is larger than the sum of its proper divisors (1).

55212186299 is an equidigital number, since it uses as much as digits as its factorization.

55212186299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 50.

The spelling of 55212186299 in words is "fifty-five billion, two hundred twelve million, one hundred eighty-six thousand, two hundred ninety-nine".