55550873 has 4 divisors (see below), whose sum is σ = 63486720. Its totient is φ = 47615028.

The previous prime is 55550867. The next prime is 55550879. The reversal of 55550873 is 37805555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55550867) and next prime (55550879).

It is a cyclic number.

It is not a de Polignac number, because 55550873 - 2⁸ = 55550617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55550879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3967913 + ... + 3967926.

It is an arithmetic number, because the mean of its divisors is an integer number (15871680).

Almost surely, 2^55550873 is an apocalyptic number.

It is an amenable number.

55550873 is a deficient number, since it is larger than the sum of its proper divisors (7935847).

55550873 is an equidigital number, since it uses as much as digits as its factorization.

55550873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7935846.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 55550873 is about 7453.2458030042. The cubic root of 55550873 is about 381.5606935072.

The spelling of 55550873 in words is "fifty-five million, five hundred fifty thousand, eight hundred seventy-three".