53663573 has 4 divisors (see below), whose sum is σ = 55394688. Its totient is φ = 51932460.

The previous prime is 53663569. The next prime is 53663593. The reversal of 53663573 is 37536635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53663573 - 2² = 53663569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53663503) 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, 865511 + ... + 865572.

It is an arithmetic number, because the mean of its divisors is an integer number (13848672).

Almost surely, 2^53663573 is an apocalyptic number.

It is an amenable number.

53663573 is a deficient number, since it is larger than the sum of its proper divisors (1731115).

53663573 is a wasteful number, since it uses less digits than its factorization.

53663573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731114.

The product of its digits is 170100, while the sum is 38.

The square root of 53663573 is about 7325.5425055077. The cubic root of 53663573 is about 377.1897320489.

The spelling of 53663573 in words is "fifty-three million, six hundred sixty-three thousand, five hundred seventy-three".