225702473 has 4 divisors (see below), whose sum is σ = 235515648. Its totient is φ = 215889300.

The previous prime is 225702469. The next prime is 225702493. The reversal of 225702473 is 374207522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225702473 - 2² = 225702469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225702403) 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, 4906553 + ... + 4906598.

It is an arithmetic number, because the mean of its divisors is an integer number (58878912).

Almost surely, 2^225702473 is an apocalyptic number.

225702473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

225702473 is a deficient number, since it is larger than the sum of its proper divisors (9813175).

225702473 is an equidigital number, since it uses as much as digits as its factorization.

225702473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9813174.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 225702473 is about 15023.3975185375. The cubic root of 225702473 is about 608.8525171720.

Adding to 225702473 its reverse (374207522), we get a palindrome (599909995).

The spelling of 225702473 in words is "two hundred twenty-five million, seven hundred two thousand, four hundred seventy-three".