55413665 has 4 divisors (see below), whose sum is σ = 66496404. Its totient is φ = 44330928.

The previous prime is 55413641. The next prime is 55413689. The reversal of 55413665 is 56631455.

55413665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (55413641) and next prime (55413689).

It can be written as a sum of positive squares in 2 ways, for example, as 19784704 + 35628961 = 4448^2 + 5969^2 .

It is a cyclic number.

It is not a de Polignac number, because 55413665 - 2⁸ = 55413409 is a prime.

It is a Duffinian number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 5541362 + ... + 5541371.

It is an arithmetic number, because the mean of its divisors is an integer number (16624101).

Almost surely, 2^55413665 is an apocalyptic number.

It is an amenable number.

55413665 is a deficient number, since it is larger than the sum of its proper divisors (11082739).

55413665 is a wasteful number, since it uses less digits than its factorization.

55413665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11082738.

The product of its digits is 54000, while the sum is 35.

The square root of 55413665 is about 7444.0355318873. The cubic root of 55413665 is about 381.2462889543.

The spelling of 55413665 in words is "fifty-five million, four hundred thirteen thousand, six hundred sixty-five".