55616065 has 8 divisors (see below), whose sum is σ = 66951720. Its totient is φ = 44351232.

The previous prime is 55616039. The next prime is 55616083. The reversal of 55616065 is 56061655.

It can be written as a sum of positive squares in 4 ways, for example, as 2792241 + 52823824 = 1671^2 + 7268^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55616065 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55616065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15960 + ... + 19129.

It is an arithmetic number, because the mean of its divisors is an integer number (8368965).

Almost surely, 2^55616065 is an apocalyptic number.

It is an amenable number.

55616065 is a deficient number, since it is larger than the sum of its proper divisors (11335655).

55616065 is a wasteful number, since it uses less digits than its factorization.

55616065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35411.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 55616065 is about 7457.6179172709. The cubic root of 55616065 is about 381.7098959656.

The spelling of 55616065 in words is "fifty-five million, six hundred sixteen thousand, sixty-five".