55161473 has 2 divisors, whose sum is σ = 55161474. Its totient is φ = 55161472.

The previous prime is 55161461. The next prime is 55161553. The reversal of 55161473 is 37416155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54937744 + 223729 = 7412^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 55161473 - 2²⁰ = 54112897 is a prime.

It is not a weakly prime, because it can be changed into another prime (55161443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27580736 + 27580737.

It is an arithmetic number, because the mean of its divisors is an integer number (27580737).

Almost surely, 2^55161473 is an apocalyptic number.

It is an amenable number.

55161473 is a deficient number, since it is larger than the sum of its proper divisors (1).

55161473 is an equidigital number, since it uses as much as digits as its factorization.

55161473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 55161473 is about 7427.0770158926. The cubic root of 55161473 is about 380.6670486053.

The spelling of 55161473 in words is "fifty-five million, one hundred sixty-one thousand, four hundred seventy-three".