54520555 has 4 divisors (see below), whose sum is σ = 65424672. Its totient is φ = 43616440.

The previous prime is 54520553. The next prime is 54520567. The reversal of 54520555 is 55502545.

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

It is not a de Polignac number, because 54520555 - 2¹ = 54520553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54520553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452051 + ... + 5452060.

It is an arithmetic number, because the mean of its divisors is an integer number (16356168).

Almost surely, 2^54520555 is an apocalyptic number.

54520555 is a deficient number, since it is larger than the sum of its proper divisors (10904117).

54520555 is a wasteful number, since it uses less digits than its factorization.

54520555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10904116.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 54520555 is about 7383.8035591421. The cubic root of 54520555 is about 379.1869852386.

The spelling of 54520555 in words is "fifty-four million, five hundred twenty thousand, five hundred fifty-five".