172255355 has 4 divisors (see below), whose sum is σ = 206706432. Its totient is φ = 137804280.

The previous prime is 172255337. The next prime is 172255357. The reversal of 172255355 is 553552271.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553552271 = 421 ⋅1314851.

It is not a de Polignac number, because 172255355 - 2¹⁶ = 172189819 is a prime.

It is a super-3 number, since 3×172255355³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172255357) 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, 17225531 + ... + 17225540.

It is an arithmetic number, because the mean of its divisors is an integer number (51676608).

Almost surely, 2^172255355 is an apocalyptic number.

172255355 is a deficient number, since it is larger than the sum of its proper divisors (34451077).

172255355 is an equidigital number, since it uses as much as digits as its factorization.

172255355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34451076.

The product of its digits is 52500, while the sum is 35.

The square root of 172255355 is about 13124.6087560735. The cubic root of 172255355 is about 556.4048547523.

The spelling of 172255355 in words is "one hundred seventy-two million, two hundred fifty-five thousand, three hundred fifty-five".