55500017 has 4 divisors (see below), whose sum is σ = 55749120. Its totient is φ = 55250916.

The previous prime is 55499993. The next prime is 55500031. The reversal of 55500017 is 71000555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55500017 - 2¹⁸ = 55237873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55499965 and 55500001.

It is not an unprimeable number, because it can be changed into a prime (55500047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124217 + ... + 124662.

It is an arithmetic number, because the mean of its divisors is an integer number (13937280).

Almost surely, 2^55500017 is an apocalyptic number.

It is an amenable number.

55500017 is a deficient number, since it is larger than the sum of its proper divisors (249103).

55500017 is a wasteful number, since it uses less digits than its factorization.

55500017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249102.

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 55500017 is about 7449.8333538409. The cubic root of 55500017 is about 381.4442202389. Note that the first 3 decimals are identical.

The spelling of 55500017 in words is "fifty-five million, five hundred thousand, seventeen".