55948435189 has 2 divisors, whose sum is σ = 55948435190. Its totient is φ = 55948435188.

The previous prime is 55948435187. The next prime is 55948435267. The reversal of 55948435189 is 98153484955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47325827025 + 8622608164 = 217545^2 + 92858^2 .

It is a cyclic number.

It is not a de Polignac number, because 55948435189 - 2¹ = 55948435187 is a prime.

Together with 55948435187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55948435181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27974217594 + 27974217595.

It is an arithmetic number, because the mean of its divisors is an integer number (27974217595).

Almost surely, 2^55948435189 is an apocalyptic number.

It is an amenable number.

55948435189 is a deficient number, since it is larger than the sum of its proper divisors (1).

55948435189 is an equidigital number, since it uses as much as digits as its factorization.

55948435189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104000, while the sum is 61.

The spelling of 55948435189 in words is "fifty-five billion, nine hundred forty-eight million, four hundred thirty-five thousand, one hundred eighty-nine".