55353543505207 has 2 divisors, whose sum is σ = 55353543505208. Its totient is φ = 55353543505206.

The previous prime is 55353543505193. The next prime is 55353543505261. The reversal of 55353543505207 is 70250534535355.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55353543505207 is a prime.

It is a super-2 number, since 2×55353543505207² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55353543505277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27676771752603 + 27676771752604.

It is an arithmetic number, because the mean of its divisors is an integer number (27676771752604).

Almost surely, 2^{55353543505207} is an apocalyptic number.

55353543505207 is a deficient number, since it is larger than the sum of its proper divisors (1).

55353543505207 is an equidigital number, since it uses as much as digits as its factorization.

55353543505207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625000, while the sum is 52.

The spelling of 55353543505207 in words is "fifty-five trillion, three hundred fifty-three billion, five hundred forty-three million, five hundred five thousand, two hundred seven".