55806273 has 8 divisors (see below), whose sum is σ = 82676000. Its totient is φ = 37204164.

The previous prime is 55806259. The next prime is 55806281. The reversal of 55806273 is 37260855.

55806273 is a `hidden beast` number, since 5 + 580 + 6 + 2 + 73 = 666.

It is not a de Polignac number, because 55806273 - 2⁵ = 55806241 is a prime.

It is a super-2 number, since 2×55806273² = 6228680212301058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55806203) 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 in 7 ways as a sum of consecutive naturals, for example, 1033423 + ... + 1033476.

It is an arithmetic number, because the mean of its divisors is an integer number (10334500).

Almost surely, 2^55806273 is an apocalyptic number.

It is an amenable number.

55806273 is a deficient number, since it is larger than the sum of its proper divisors (26869727).

55806273 is a wasteful number, since it uses less digits than its factorization.

55806273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066908 (or 2066902 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55806273 is about 7470.3596298973. The cubic root of 55806273 is about 382.1445525315.

The spelling of 55806273 in words is "fifty-five million, eight hundred six thousand, two hundred seventy-three".