55447255 has 8 divisors (see below), whose sum is σ = 66577824. Its totient is φ = 44330400.

The previous prime is 55447241. The next prime is 55447261. The reversal of 55447255 is 55274455.

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

It is not a de Polignac number, because 55447255 - 2¹¹ = 55445207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10990 + ... + 15220.

It is an arithmetic number, because the mean of its divisors is an integer number (8322228).

Almost surely, 2^55447255 is an apocalyptic number.

55447255 is a deficient number, since it is larger than the sum of its proper divisors (11130569).

55447255 is a wasteful number, since it uses less digits than its factorization.

55447255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6857.

The product of its digits is 140000, while the sum is 37.

The square root of 55447255 is about 7446.2913587906. The cubic root of 55447255 is about 381.3233065165.

The spelling of 55447255 in words is "fifty-five million, four hundred forty-seven thousand, two hundred fifty-five".