55548887 has 8 divisors (see below), whose sum is σ = 58160256. Its totient is φ = 52953912.

The previous prime is 55548881. The next prime is 55548901. The reversal of 55548887 is 78884555.

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

It is not a de Polignac number, because 55548887 - 2¹⁸ = 55286743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55548881) 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, 3128 + ... + 10994.

It is an arithmetic number, because the mean of its divisors is an integer number (7270032).

Almost surely, 2^55548887 is an apocalyptic number.

55548887 is a deficient number, since it is larger than the sum of its proper divisors (2611369).

55548887 is a wasteful number, since it uses less digits than its factorization.

55548887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8197.

The product of its digits is 1792000, while the sum is 50.

The square root of 55548887 is about 7453.1125712685. The cubic root of 55548887 is about 381.5561463925.

It can be divided in two parts, 5554 and 8887, that added together give a palindrome (14441).

The spelling of 55548887 in words is "fifty-five million, five hundred forty-eight thousand, eight hundred eighty-seven".