53161228 has 12 divisors (see below), whose sum is σ = 94307080. Its totient is φ = 26216352.

The previous prime is 53161219. The next prime is 53161231. The reversal of 53161228 is 82216135.

It is a super-2 number, since 2×53161228² = 5652232324935968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53161196 and 53161205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90738 + ... + 91321.

Almost surely, 2^53161228 is an apocalyptic number.

It is an amenable number.

53161228 is a deficient number, since it is larger than the sum of its proper divisors (41145852).

53161228 is a wasteful number, since it uses less digits than its factorization.

53161228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182136 (or 182134 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 53161228 is about 7291.1746653060. The cubic root of 53161228 is about 376.0090819445.

The spelling of 53161228 in words is "fifty-three million, one hundred sixty-one thousand, two hundred twenty-eight".