55541785 has 16 divisors (see below), whose sum is σ = 72591120. Its totient is φ = 40550400.

The previous prime is 55541753. The next prime is 55541789. The reversal of 55541785 is 58714555.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4447881 + 51093904 = 2109^2 + 7148^2 .

It is not a de Polignac number, because 55541785 - 2⁵ = 55541753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55541789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (4536945).

Almost surely, 2^55541785 is an apocalyptic number.

It is an amenable number.

55541785 is a deficient number, since it is larger than the sum of its proper divisors (17049335).

55541785 is a wasteful number, since it uses less digits than its factorization.

55541785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9708.

The product of its digits is 140000, while the sum is 40.

The square root of 55541785 is about 7452.6361108000. The cubic root of 55541785 is about 381.5398848771.

The spelling of 55541785 in words is "fifty-five million, five hundred forty-one thousand, seven hundred eighty-five".