55472785 has 8 divisors (see below), whose sum is σ = 70483176. Its totient is φ = 41767680.

The previous prime is 55472771. The next prime is 55472827. The reversal of 55472785 is 58727455.

55472785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1317904 + 54154881 = 1148^2 + 7359^2 .

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

It is not a de Polignac number, because 55472785 - 2¹³ = 55464593 is a prime.

It is a Duffinian number.

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, 326226 + ... + 326395.

It is an arithmetic number, because the mean of its divisors is an integer number (8810397).

Almost surely, 2^55472785 is an apocalyptic number.

It is an amenable number.

55472785 is a deficient number, since it is larger than the sum of its proper divisors (15010391).

55472785 is a wasteful number, since it uses less digits than its factorization.

55472785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652643.

The product of its digits is 392000, while the sum is 43.

The square root of 55472785 is about 7448.0054376994. The cubic root of 55472785 is about 381.3818227301.

The spelling of 55472785 in words is "fifty-five million, four hundred seventy-two thousand, seven hundred eighty-five".