53320653 has 16 divisors (see below), whose sum is σ = 83640960. Its totient is φ = 33455808.

The previous prime is 53320637. The next prime is 53320679. The reversal of 53320653 is 35602335.

53320653 is a `hidden beast` number, since 5 + 3 + 3 + 2 + 0 + 653 = 666.

It is not a de Polignac number, because 53320653 - 2⁴ = 53320637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53320613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57625 + ... + 58542.

It is an arithmetic number, because the mean of its divisors is an integer number (5227560).

Almost surely, 2^53320653 is an apocalyptic number.

It is an amenable number.

53320653 is a deficient number, since it is larger than the sum of its proper divisors (30320307).

53320653 is a wasteful number, since it uses less digits than its factorization.

53320653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116193 (or 116187 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 53320653 is about 7302.0992187179. The cubic root of 53320653 is about 376.3845775616.

Adding to 53320653 its reverse (35602335), we get a palindrome (88922988).

The spelling of 53320653 in words is "fifty-three million, three hundred twenty thousand, six hundred fifty-three".