53228863 has 4 divisors (see below), whose sum is σ = 54361440. Its totient is φ = 52096288.

The previous prime is 53228849. The next prime is 53228867. The reversal of 53228863 is 36882235.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53228863 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 (53228867) 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, 566218 + ... + 566311.

It is an arithmetic number, because the mean of its divisors is an integer number (13590360).

Almost surely, 2^53228863 is an apocalyptic number.

53228863 is a deficient number, since it is larger than the sum of its proper divisors (1132577).

53228863 is a wasteful number, since it uses less digits than its factorization.

53228863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132576.

The product of its digits is 69120, while the sum is 37.

The square root of 53228863 is about 7295.8113325387. The cubic root of 53228863 is about 376.1684750317.

The spelling of 53228863 in words is "fifty-three million, two hundred twenty-eight thousand, eight hundred sixty-three".