52172235707 has 4 divisors (see below), whose sum is σ = 52193985600. Its totient is φ = 52150485816.

The previous prime is 52172235683. The next prime is 52172235721. The reversal of 52172235707 is 70753227125.

It is a happy number.

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 52172235707 - 2¹⁸ = 52171973563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52172235737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10871348 + ... + 10876145.

It is an arithmetic number, because the mean of its divisors is an integer number (13048496400).

Almost surely, 2^52172235707 is an apocalyptic number.

52172235707 is a deficient number, since it is larger than the sum of its proper divisors (21749893).

52172235707 is a wasteful number, since it uses less digits than its factorization.

52172235707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21749892.

The product of its (nonzero) digits is 205800, while the sum is 41.

The spelling of 52172235707 in words is "fifty-two billion, one hundred seventy-two million, two hundred thirty-five thousand, seven hundred seven".