52172693 has 4 divisors (see below), whose sum is σ = 52679328. Its totient is φ = 51666060.

The previous prime is 52172663. The next prime is 52172713. The reversal of 52172693 is 39627125.

52172693 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.

It is a cyclic number.

It is not a de Polignac number, because 52172693 - 2¹⁴ = 52156309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52172663) 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, 253163 + ... + 253368.

It is an arithmetic number, because the mean of its divisors is an integer number (13169832).

Almost surely, 2^52172693 is an apocalyptic number.

It is an amenable number.

52172693 is a deficient number, since it is larger than the sum of its proper divisors (506635).

52172693 is a wasteful number, since it uses less digits than its factorization.

52172693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506634.

The product of its digits is 22680, while the sum is 35.

The square root of 52172693 is about 7223.0667309668. The cubic root of 52172693 is about 373.6638504960.

The spelling of 52172693 in words is "fifty-two million, one hundred seventy-two thousand, six hundred ninety-three".