55842473 has 4 divisors (see below), whose sum is σ = 55915860. Its totient is φ = 55769088.

The previous prime is 55842469. The next prime is 55842481. The reversal of 55842473 is 37424855.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42680089 + 13162384 = 6533^2 + 3628^2 .

It is a cyclic number.

It is not a de Polignac number, because 55842473 - 2² = 55842469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55842373) 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, 35540 + ... + 37077.

It is an arithmetic number, because the mean of its divisors is an integer number (13978965).

Almost surely, 2^55842473 is an apocalyptic number.

It is an amenable number.

55842473 is a deficient number, since it is larger than the sum of its proper divisors (73387).

55842473 is an equidigital number, since it uses as much as digits as its factorization.

55842473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73386.

The product of its digits is 134400, while the sum is 38.

The square root of 55842473 is about 7472.7821458945. The cubic root of 55842473 is about 382.2271635712.

The spelling of 55842473 in words is "fifty-five million, eight hundred forty-two thousand, four hundred seventy-three".