225772546 has 8 divisors (see below), whose sum is σ = 358579980. Its totient is φ = 106245888.

The previous prime is 225772543. The next prime is 225772553. The reversal of 225772546 is 645277522.

It can be written as a sum of positive squares in 2 ways, for example, as 225150025 + 622521 = 15005^2 + 789^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 225772499 and 225772508.

It is not an unprimeable number, because it can be changed into a prime (225772543) 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, 3320151 + ... + 3320218.

Almost surely, 2^225772546 is an apocalyptic number.

225772546 is a deficient number, since it is larger than the sum of its proper divisors (132807434).

225772546 is a wasteful number, since it uses less digits than its factorization.

225772546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640388.

The product of its digits is 235200, while the sum is 40.

The square root of 225772546 is about 15025.7294664851. The cubic root of 225772546 is about 608.9155200379.

The spelling of 225772546 in words is "two hundred twenty-five million, seven hundred seventy-two thousand, five hundred forty-six".