53506564 has 6 divisors (see below), whose sum is σ = 93636494. Its totient is φ = 26753280.

The previous prime is 53506553. The next prime is 53506567. The reversal of 53506564 is 46560535.

It can be written as a sum of positive squares in only one way, i.e., 31809600 + 21696964 = 5640^2 + 4658^2 .

It is not an unprimeable number, because it can be changed into a prime (53506567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6688317 + ... + 6688324.

Almost surely, 2^53506564 is an apocalyptic number.

It is an amenable number.

53506564 is a deficient number, since it is larger than the sum of its proper divisors (40129930).

53506564 is a wasteful number, since it uses less digits than its factorization.

53506564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13376645 (or 13376643 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 53506564 is about 7314.8181112041. The cubic root of 53506564 is about 376.8215118525.

The spelling of 53506564 in words is "fifty-three million, five hundred six thousand, five hundred sixty-four".