53161356 has 12 divisors (see below), whose sum is σ = 124043192. Its totient is φ = 17720448.

The previous prime is 53161331. The next prime is 53161369. The reversal of 53161356 is 65316135.

53161356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×53161356² = 5652259543517472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215045 + ... + 2215068.

Almost surely, 2^53161356 is an apocalyptic number.

It is an amenable number.

53161356 is an abundant number, since it is smaller than the sum of its proper divisors (70881836).

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

53161356 is a wasteful number, since it uses less digits than its factorization.

53161356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430120 (or 4430118 counting only the distinct ones).

The product of its digits is 8100, while the sum is 30.

The square root of 53161356 is about 7291.1834430358. The cubic root of 53161356 is about 376.0093837254.

The spelling of 53161356 in words is "fifty-three million, one hundred sixty-one thousand, three hundred fifty-six".