225711857 has 8 divisors (see below), whose sum is σ = 269172096. Its totient is φ = 185055552.

The previous prime is 225711833. The next prime is 225711881. The reversal of 225711857 is 758117522.

It is an interprime number because it is at equal distance from previous prime (225711833) and next prime (225711881).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225711857 - 2²⁶ = 158602993 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 225711857.

It is not an unprimeable number, because it can be changed into a prime (225711817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700808 + ... + 701129.

It is an arithmetic number, because the mean of its divisors is an integer number (33646512).

Almost surely, 2^225711857 is an apocalyptic number.

It is an amenable number.

225711857 is a deficient number, since it is larger than the sum of its proper divisors (43460239).

225711857 is a wasteful number, since it uses less digits than its factorization.

225711857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401967.

The product of its digits is 39200, while the sum is 38.

The square root of 225711857 is about 15023.7098281350. The cubic root of 225711857 is about 608.8609551136.

The spelling of 225711857 in words is "two hundred twenty-five million, seven hundred eleven thousand, eight hundred fifty-seven".