53161660 has 24 divisors (see below), whose sum is σ = 111900096. Its totient is φ = 21215040.

The previous prime is 53161651. The next prime is 53161673. The reversal of 53161660 is 6616135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6390 + ... + 12130.

It is an arithmetic number, because the mean of its divisors is an integer number (4662504).

Almost surely, 2^53161660 is an apocalyptic number.

It is an amenable number.

53161660 is an abundant number, since it is smaller than the sum of its proper divisors (58738436).

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

53161660 is a wasteful number, since it uses less digits than its factorization.

53161660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213 (or 6211 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 53161660 is about 7291.2042901019. The cubic root of 53161660 is about 376.0101004530.

Adding to 53161660 its reverse (6616135), we get a palindrome (59777795).

The spelling of 53161660 in words is "fifty-three million, one hundred sixty-one thousand, six hundred sixty".