55845473 has 4 divisors (see below), whose sum is σ = 55860420. Its totient is φ = 55830528.

The previous prime is 55845451. The next prime is 55845487. The reversal of 55845473 is 37454855.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22344529 + 33500944 = 4727^2 + 5788^2 .

It is a cyclic number.

It is not a de Polignac number, because 55845473 - 2⁶ = 55845409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55845473.

It is not an unprimeable number, because it can be changed into a prime (55845373) 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, 3713 + ... + 11201.

It is an arithmetic number, because the mean of its divisors is an integer number (13965105).

Almost surely, 2^55845473 is an apocalyptic number.

It is an amenable number.

55845473 is a deficient number, since it is larger than the sum of its proper divisors (14947).

55845473 is an equidigital number, since it uses as much as digits as its factorization.

55845473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14946.

The product of its digits is 336000, while the sum is 41.

The square root of 55845473 is about 7472.9828716517. The cubic root of 55845473 is about 382.2340081879.

The spelling of 55845473 in words is "fifty-five million, eight hundred forty-five thousand, four hundred seventy-three".