53664152173 has 4 divisors (see below), whose sum is σ = 55395253888. Its totient is φ = 51933050460.

The previous prime is 53664152149. The next prime is 53664152219. The reversal of 53664152173 is 37125146635.

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 53664152173 - 2⁵ = 53664152141 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 (53664852173) 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, 865550811 + ... + 865550872.

It is an arithmetic number, because the mean of its divisors is an integer number (13848813472).

Almost surely, 2^53664152173 is an apocalyptic number.

It is an amenable number.

53664152173 is a deficient number, since it is larger than the sum of its proper divisors (1731101715).

53664152173 is a wasteful number, since it uses less digits than its factorization.

53664152173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731101714.

The product of its digits is 453600, while the sum is 43.

The spelling of 53664152173 in words is "fifty-three billion, six hundred sixty-four million, one hundred fifty-two thousand, one hundred seventy-three".