55508705 has 8 divisors (see below), whose sum is σ = 76126272. Its totient is φ = 38063088.

The previous prime is 55508681. The next prime is 55508737. The reversal of 55508705 is 50780555.

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

It is not a de Polignac number, because 55508705 - 2⁶ = 55508641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1585963 = 55508705 / (5 + 5 + 5 + 0 + 8 + 7 + 0 + 5).

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, 792947 + ... + 793016.

It is an arithmetic number, because the mean of its divisors is an integer number (9515784).

Almost surely, 2^55508705 is an apocalyptic number.

It is an amenable number.

55508705 is a deficient number, since it is larger than the sum of its proper divisors (20617567).

55508705 is a wasteful number, since it uses less digits than its factorization.

55508705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585975.

The product of its (nonzero) digits is 35000, while the sum is 35.

The square root of 55508705 is about 7450.4164313144. The cubic root of 55508705 is about 381.4641230225.

The spelling of 55508705 in words is "fifty-five million, five hundred eight thousand, seven hundred five".