53330228 has 18 divisors (see below), whose sum is σ = 108565506. Its totient is φ = 22855728.

The previous prime is 53330219. The next prime is 53330273. The reversal of 53330228 is 82203335.

It can be written as a sum of positive squares in only one way, i.e., 38291344 + 15038884 = 6188^2 + 3878^2 .

It is a super-2 number, since 2×53330228² = 5688226437063968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53330197 and 53330206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135851 + ... + 136242.

It is an arithmetic number, because the mean of its divisors is an integer number (6031417).

Almost surely, 2^53330228 is an apocalyptic number.

It is an amenable number.

53330228 is an abundant number, since it is smaller than the sum of its proper divisors (55235278).

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

53330228 is a wasteful number, since it uses less digits than its factorization.

53330228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272111 (or 272102 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 53330228 is about 7302.7548226679. The cubic root of 53330228 is about 376.4071058342.

The spelling of 53330228 in words is "fifty-three million, three hundred thirty thousand, two hundred twenty-eight".