55424545 has 8 divisors (see below), whose sum is σ = 72555840. Its totient is φ = 40308720.

The previous prime is 55424533. The next prime is 55424569. The reversal of 55424545 is 54542455.

55424545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55424545 - 2⁵ = 55424513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55424545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503805 + ... + 503914.

It is an arithmetic number, because the mean of its divisors is an integer number (9069480).

Almost surely, 2^55424545 is an apocalyptic number.

55424545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55424545 is a deficient number, since it is larger than the sum of its proper divisors (17131295).

55424545 is a wasteful number, since it uses less digits than its factorization.

55424545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007735.

The product of its digits is 80000, while the sum is 34.

The square root of 55424545 is about 7444.7662824296. The cubic root of 55424545 is about 381.2712388060.

The spelling of 55424545 in words is "fifty-five million, four hundred twenty-four thousand, five hundred forty-five".