225979671 has 4 divisors (see below), whose sum is σ = 301306232. Its totient is φ = 150653112.

The previous prime is 225979661. The next prime is 225979681. The reversal of 225979671 is 176979522.

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

It is an interprime number because it is at equal distance from previous prime (225979661) and next prime (225979681).

It is not a de Polignac number, because 225979671 - 2¹³ = 225971479 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 225979671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225979601) 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, 37663276 + ... + 37663281.

It is an arithmetic number, because the mean of its divisors is an integer number (75326558).

Almost surely, 2^225979671 is an apocalyptic number.

225979671 is a deficient number, since it is larger than the sum of its proper divisors (75326561).

225979671 is an equidigital number, since it uses as much as digits as its factorization.

225979671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75326560.

The product of its digits is 476280, while the sum is 48.

The square root of 225979671 is about 15032.6202306850. The cubic root of 225979671 is about 609.1016706288.

The spelling of 225979671 in words is "two hundred twenty-five million, nine hundred seventy-nine thousand, six hundred seventy-one".