55561705 has 8 divisors (see below), whose sum is σ = 66890304. Its totient is φ = 44305200.

The previous prime is 55561699. The next prime is 55561711. The reversal of 55561705 is 50716555.

It is an interprime number because it is at equal distance from previous prime (55561699) and next prime (55561711).

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

It is not a de Polignac number, because 55561705 - 2⁷ = 55561577 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16311 + ... + 19420.

It is an arithmetic number, because the mean of its divisors is an integer number (8361288).

Almost surely, 2^55561705 is an apocalyptic number.

It is an amenable number.

55561705 is a deficient number, since it is larger than the sum of its proper divisors (11328599).

55561705 is a wasteful number, since it uses less digits than its factorization.

55561705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36047.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 55561705 is about 7453.9724308586. The cubic root of 55561705 is about 381.5854923783.

The spelling of 55561705 in words is "fifty-five million, five hundred sixty-one thousand, seven hundred five".