172552423 has 4 divisors (see below), whose sum is σ = 177216040. Its totient is φ = 167888808.

The previous prime is 172552409. The next prime is 172552481. The reversal of 172552423 is 324255271.

172552423 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 an emirpimes, since its reverse is a distinct semiprime: 324255271 = 109 ⋅2974819.

It is a cyclic number.

It is not a de Polignac number, because 172552423 - 2¹³ = 172544231 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 (172552483) 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, 2331753 + ... + 2331826.

It is an arithmetic number, because the mean of its divisors is an integer number (44304010).

Almost surely, 2^172552423 is an apocalyptic number.

172552423 is a deficient number, since it is larger than the sum of its proper divisors (4663617).

172552423 is an equidigital number, since it uses as much as digits as its factorization.

172552423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663616.

The product of its digits is 16800, while the sum is 31.

The square root of 172552423 is about 13135.9210944646. The cubic root of 172552423 is about 556.7245258006.

The spelling of 172552423 in words is "one hundred seventy-two million, five hundred fifty-two thousand, four hundred twenty-three".