55345516417 has 2 divisors, whose sum is σ = 55345516418. Its totient is φ = 55345516416.

The previous prime is 55345516411. The next prime is 55345516451. The reversal of 55345516417 is 71461554355.

55345516417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44261427456 + 11084088961 = 210384^2 + 105281^2 .

It is a cyclic number.

It is not a de Polignac number, because 55345516417 - 2¹⁵ = 55345483649 is a prime.

It is not a weakly prime, because it can be changed into another prime (55345516411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672758208 + 27672758209.

It is an arithmetic number, because the mean of its divisors is an integer number (27672758209).

Almost surely, 2^55345516417 is an apocalyptic number.

It is an amenable number.

55345516417 is a deficient number, since it is larger than the sum of its proper divisors (1).

55345516417 is an equidigital number, since it uses as much as digits as its factorization.

55345516417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260000, while the sum is 46.

The spelling of 55345516417 in words is "fifty-five billion, three hundred forty-five million, five hundred sixteen thousand, four hundred seventeen".