55504161 has 6 divisors (see below), whose sum is σ = 80172690. Its totient is φ = 37002768.

The previous prime is 55504151. The next prime is 55504199. The reversal of 55504161 is 16140555.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 5377761 = 7080^2 + 2319^2 .

It is not a de Polignac number, because 55504161 - 2¹⁷ = 55373089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55504121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083556 + ... + 3083573.

It is an arithmetic number, because the mean of its divisors is an integer number (13362115).

Almost surely, 2^55504161 is an apocalyptic number.

It is an amenable number.

55504161 is a deficient number, since it is larger than the sum of its proper divisors (24668529).

55504161 is a wasteful number, since it uses less digits than its factorization.

55504161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167135 (or 6167132 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 55504161 is about 7450.1114756761. Note that the first 3 decimals coincide. The cubic root of 55504161 is about 381.4537137225.

The spelling of 55504161 in words is "fifty-five million, five hundred four thousand, one hundred sixty-one".