53664137 has 4 divisors (see below), whose sum is σ = 53748240. Its totient is φ = 53580036.

The previous prime is 53664109. The next prime is 53664157. The reversal of 53664137 is 73146635.

53664137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73146635 = 5 ⋅14629327.

It is a cyclic number.

It is not a de Polignac number, because 53664137 - 2⁸ = 53663881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53664097 and 53664106.

It is not an unprimeable number, because it can be changed into a prime (53664157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41087 + ... + 42372.

It is an arithmetic number, because the mean of its divisors is an integer number (13437060).

Almost surely, 2^53664137 is an apocalyptic number.

It is an amenable number.

53664137 is a deficient number, since it is larger than the sum of its proper divisors (84103).

53664137 is an equidigital number, since it uses as much as digits as its factorization.

53664137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84102.

The product of its digits is 45360, while the sum is 35.

The square root of 53664137 is about 7325.5810008490. The cubic root of 53664137 is about 377.1910534559.

The spelling of 53664137 in words is "fifty-three million, six hundred sixty-four thousand, one hundred thirty-seven".