53243656 has 16 divisors (see below), whose sum is σ = 100055340. Its totient is φ = 26562240.

The previous prime is 53243651. The next prime is 53243669. The reversal of 53243656 is 65634235.

It can be written as a sum of positive squares in 2 ways, for example, as 52794756 + 448900 = 7266^2 + 670^2 .

It is not an unprimeable number, because it can be changed into a prime (53243651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3531 + ... + 10906.

Almost surely, 2^53243656 is an apocalyptic number.

It is an amenable number.

53243656 is a deficient number, since it is larger than the sum of its proper divisors (46811684).

53243656 is a wasteful number, since it uses less digits than its factorization.

53243656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904 (or 14900 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

The square root of 53243656 is about 7296.8250629983. The cubic root of 53243656 is about 376.2033191903.

The spelling of 53243656 in words is "fifty-three million, two hundred forty-three thousand, six hundred fifty-six".