55165063 has 4 divisors (see below), whose sum is σ = 57563568. Its totient is φ = 52766560.

The previous prime is 55165021. The next prime is 55165067. The reversal of 55165063 is 36056155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36056155 = 5 ⋅7211231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55165063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55165067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199218 + ... + 1199263.

It is an arithmetic number, because the mean of its divisors is an integer number (14390892).

Almost surely, 2^55165063 is an apocalyptic number.

55165063 is a deficient number, since it is larger than the sum of its proper divisors (2398505).

55165063 is a wasteful number, since it uses less digits than its factorization.

55165063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398504.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55165063 is about 7427.3186951955. The cubic root of 55165063 is about 380.6753065734.

The spelling of 55165063 in words is "fifty-five million, one hundred sixty-five thousand, sixty-three".