53916228 has 18 divisors (see below), whose sum is σ = 136288334. Its totient is φ = 17972064.

The previous prime is 53916227. The next prime is 53916229. The reversal of 53916228 is 82261935.

It is an interprime number because it is at equal distance from previous prime (53916227) and next prime (53916229).

It can be written as a sum of positive squares in only one way, i.e., 47775744 + 6140484 = 6912^2 + 2478^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1497673 = 53916228 / (5 + 3 + 9 + 1 + 6 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 53916192 and 53916201.

It is not an unprimeable number, because it can be changed into a prime (53916227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 748801 + ... + 748872.

Almost surely, 2^53916228 is an apocalyptic number.

It is an amenable number.

53916228 is an abundant number, since it is smaller than the sum of its proper divisors (82372106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53916228 is a wasteful number, since it uses less digits than its factorization.

53916228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497683 (or 1497678 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 53916228 is about 7342.7670533662. The cubic root of 53916228 is about 377.7807580567.

The spelling of 53916228 in words is "fifty-three million, nine hundred sixteen thousand, two hundred twenty-eight".