55549473 has 8 divisors (see below), whose sum is σ = 84646848. Its totient is φ = 31742544.

The previous prime is 55549451. The next prime is 55549511. The reversal of 55549473 is 37494555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55549473 - 2⁶ = 55549409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55549433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322586 + ... + 1322627.

It is an arithmetic number, because the mean of its divisors is an integer number (10580856).

Almost surely, 2^55549473 is an apocalyptic number.

It is an amenable number.

55549473 is a deficient number, since it is larger than the sum of its proper divisors (29097375).

55549473 is a wasteful number, since it uses less digits than its factorization.

55549473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645223.

The product of its digits is 378000, while the sum is 42.

The square root of 55549473 is about 7453.1518835993. The cubic root of 55549473 is about 381.5574881002.

The spelling of 55549473 in words is "fifty-five million, five hundred forty-nine thousand, four hundred seventy-three".