55012163 has 4 divisors (see below), whose sum is σ = 57907560. Its totient is φ = 52116768.

The previous prime is 55012127. The next prime is 55012171. The reversal of 55012163 is 36121055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36121055 = 5 ⋅7224211.

It is a cyclic number.

It is not a de Polignac number, because 55012163 - 2¹⁶ = 54946627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55012123) 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, 1447670 + ... + 1447707.

It is an arithmetic number, because the mean of its divisors is an integer number (14476890).

Almost surely, 2^55012163 is an apocalyptic number.

55012163 is a deficient number, since it is larger than the sum of its proper divisors (2895397).

55012163 is a wasteful number, since it uses less digits than its factorization.

55012163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895396.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 55012163 is about 7417.0184710570. The cubic root of 55012163 is about 380.3232775316.

The spelling of 55012163 in words is "fifty-five million, twelve thousand, one hundred sixty-three".