55697955610189 has 2 divisors, whose sum is σ = 55697955610190. Its totient is φ = 55697955610188.

The previous prime is 55697955610169. The next prime is 55697955610207. The reversal of 55697955610189 is 98101655979655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43189475296900 + 12508480313289 = 6571870^2 + 3536733^2 .

It is a cyclic number.

It is not a de Polignac number, because 55697955610189 - 2⁴⁵ = 20513583521357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55697955610139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27848977805094 + 27848977805095.

It is an arithmetic number, because the mean of its divisors is an integer number (27848977805095).

Almost surely, 2^{55697955610189} is an apocalyptic number.

It is an amenable number.

55697955610189 is a deficient number, since it is larger than the sum of its proper divisors (1).

55697955610189 is an equidigital number, since it uses as much as digits as its factorization.

55697955610189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 918540000, while the sum is 76.

The spelling of 55697955610189 in words is "fifty-five trillion, six hundred ninety-seven billion, nine hundred fifty-five million, six hundred ten thousand, one hundred eighty-nine".