55561106 has 4 divisors (see below), whose sum is σ = 83341662. Its totient is φ = 27780552.

The previous prime is 55561043. The next prime is 55561139. The reversal of 55561106 is 60116555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44102881 + 11458225 = 6641^2 + 3385^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890275 + ... + 13890278.

Almost surely, 2^55561106 is an apocalyptic number.

55561106 is a deficient number, since it is larger than the sum of its proper divisors (27780556).

55561106 is a wasteful number, since it uses less digits than its factorization.

55561106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27780555.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 55561106 is about 7453.9322508324. The cubic root of 55561106 is about 381.5841211069.

The spelling of 55561106 in words is "fifty-five million, five hundred sixty-one thousand, one hundred six".