52172755 has 4 divisors (see below), whose sum is σ = 62607312. Its totient is φ = 41738200.

The previous prime is 52172749. The next prime is 52172759. The reversal of 52172755 is 55727125.

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

It is not a de Polignac number, because 52172755 - 2⁹ = 52172243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52172755.

It is not an unprimeable number, because it can be changed into a prime (52172759) 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, 5217271 + ... + 5217280.

It is an arithmetic number, because the mean of its divisors is an integer number (15651828).

Almost surely, 2^52172755 is an apocalyptic number.

52172755 is a deficient number, since it is larger than the sum of its proper divisors (10434557).

52172755 is a wasteful number, since it uses less digits than its factorization.

52172755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434556.

The product of its digits is 24500, while the sum is 34.

The square root of 52172755 is about 7223.0710227714. The cubic root of 52172755 is about 373.6639985118.

The spelling of 52172755 in words is "fifty-two million, one hundred seventy-two thousand, seven hundred fifty-five".