55017663 has 8 divisors (see below), whose sum is σ = 73450800. Its totient is φ = 36631488.

The previous prime is 55017623. The next prime is 55017689. The reversal of 55017663 is 36671055.

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

It is not a de Polignac number, because 55017663 - 2¹⁰ = 55016639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55017623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8908 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (9181350).

Almost surely, 2^55017663 is an apocalyptic number.

55017663 is a deficient number, since it is larger than the sum of its proper divisors (18433137).

55017663 is a wasteful number, since it uses less digits than its factorization.

55017663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23481.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 55017663 is about 7417.3892307199. The cubic root of 55017663 is about 380.3359517489.

The spelling of 55017663 in words is "fifty-five million, seventeen thousand, six hundred sixty-three".