55698878201 has 2 divisors, whose sum is σ = 55698878202. Its totient is φ = 55698878200.

The previous prime is 55698878177. The next prime is 55698878203. The reversal of 55698878201 is 10287889655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28122954601 + 27575923600 = 167699^2 + 166060^2 .

It is a cyclic number.

It is not a de Polignac number, because 55698878201 - 2¹⁰ = 55698877177 is a prime.

Together with 55698878203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55698878203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27849439100 + 27849439101.

It is an arithmetic number, because the mean of its divisors is an integer number (27849439101).

Almost surely, 2^55698878201 is an apocalyptic number.

It is an amenable number.

55698878201 is a deficient number, since it is larger than the sum of its proper divisors (1).

55698878201 is an equidigital number, since it uses as much as digits as its factorization.

55698878201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 59.

The spelling of 55698878201 in words is "fifty-five billion, six hundred ninety-eight million, eight hundred seventy-eight thousand, two hundred one".