53161000 has 32 divisors (see below), whose sum is σ = 124399080. Its totient is φ = 21264000.

The previous prime is 53160959. The next prime is 53161007. The reversal of 53161000 is 16135.

It can be written as a sum of positive squares in 4 ways, for example, as 20052484 + 33108516 = 4478^2 + 5754^2 .

It is not an unprimeable number, because it can be changed into a prime (53161007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25581 + ... + 27580.

Almost surely, 2^53161000 is an apocalyptic number.

53161000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53161000 is an abundant number, since it is smaller than the sum of its proper divisors (71238080).

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

53161000 is a wasteful number, since it uses less digits than its factorization.

53161000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53182 (or 53168 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 53161000 is about 7291.1590299485. The cubic root of 53161000 is about 376.0085443961.

Adding to 53161000 its reverse (16135), we get a palindrome (53177135).

The spelling of 53161000 in words is "fifty-three million, one hundred sixty-one thousand".