255172611 has 4 divisors (see below), whose sum is σ = 340230152. Its totient is φ = 170115072.

The previous prime is 255172583. The next prime is 255172681. The reversal of 255172611 is 116271552.

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

It is not a de Polignac number, because 255172611 - 2⁵ = 255172579 is a prime.

It is a super-2 number, since 2×255172611² = 130226122809114642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255172681) 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, 42528766 + ... + 42528771.

It is an arithmetic number, because the mean of its divisors is an integer number (85057538).

Almost surely, 2^255172611 is an apocalyptic number.

255172611 is a deficient number, since it is larger than the sum of its proper divisors (85057541).

255172611 is an equidigital number, since it uses as much as digits as its factorization.

255172611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85057540.

The product of its digits is 4200, while the sum is 30.

The square root of 255172611 is about 15974.1231684246. The cubic root of 255172611 is about 634.2756209552.

The spelling of 255172611 in words is "two hundred fifty-five million, one hundred seventy-two thousand, six hundred eleven".