225247973 has 8 divisors (see below), whose sum is σ = 233525376. Its totient is φ = 217103200.

The previous prime is 225247969. The next prime is 225247991. The reversal of 225247973 is 379742522.

225247973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 225247973 - 2² = 225247969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 225247973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225247963) 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, 29693 + ... + 36498.

It is an arithmetic number, because the mean of its divisors is an integer number (29190672).

Almost surely, 2^225247973 is an apocalyptic number.

It is an amenable number.

225247973 is a deficient number, since it is larger than the sum of its proper divisors (8277403).

225247973 is an equidigital number, since it uses as much as digits as its factorization.

225247973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66315.

The product of its digits is 211680, while the sum is 41.

The square root of 225247973 is about 15008.2634904908. The cubic root of 225247973 is about 608.4435578007.

The spelling of 225247973 in words is "two hundred twenty-five million, two hundred forty-seven thousand, nine hundred seventy-three".