53663523 has 4 divisors (see below), whose sum is σ = 71551368. Its totient is φ = 35775680.

The previous prime is 53663503. The next prime is 53663557. The reversal of 53663523 is 32536635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53663523 - 2¹³ = 53655331 is a prime.

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, 8943918 + ... + 8943923.

It is an arithmetic number, because the mean of its divisors is an integer number (17887842).

Almost surely, 2^53663523 is an apocalyptic number.

53663523 is a deficient number, since it is larger than the sum of its proper divisors (17887845).

53663523 is a wasteful number, since it uses less digits than its factorization.

53663523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17887844.

The product of its digits is 48600, while the sum is 33.

The square root of 53663523 is about 7325.5390927904. The cubic root of 53663523 is about 377.1896149025.

The spelling of 53663523 in words is "fifty-three million, six hundred sixty-three thousand, five hundred twenty-three".