55207163 has 4 divisors (see below), whose sum is σ = 60226008. Its totient is φ = 50188320.

The previous prime is 55207157. The next prime is 55207169. The reversal of 55207163 is 36170255.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55207157) and next prime (55207169).

It is a cyclic number.

It is not a de Polignac number, because 55207163 - 2¹⁸ = 54945019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55207169) 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, 2509406 + ... + 2509427.

It is an arithmetic number, because the mean of its divisors is an integer number (15056502).

Almost surely, 2^55207163 is an apocalyptic number.

55207163 is a deficient number, since it is larger than the sum of its proper divisors (5018845).

55207163 is a wasteful number, since it uses less digits than its factorization.

55207163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018844.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55207163 is about 7430.1522864609. The cubic root of 55207163 is about 380.7721212017.

The spelling of 55207163 in words is "fifty-five million, two hundred seven thousand, one hundred sixty-three".