220225747 has 24 divisors (see below), whose sum is σ = 264523776. Its totient is φ = 182701008.

The previous prime is 220225723. The next prime is 220225763. The reversal of 220225747 is 747522022.

It is not a de Polignac number, because 220225747 - 2⁷ = 220225619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220225787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267178 + ... + 268000.

It is an arithmetic number, because the mean of its divisors is an integer number (11021824).

Almost surely, 2^220225747 is an apocalyptic number.

220225747 is a deficient number, since it is larger than the sum of its proper divisors (44298029).

220225747 is a wasteful number, since it uses less digits than its factorization.

220225747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 220225747 is about 14840.0049528294. The cubic root of 220225747 is about 603.8874867174.

Adding to 220225747 its reverse (747522022), we get a palindrome (967747769).

The spelling of 220225747 in words is "two hundred twenty million, two hundred twenty-five thousand, seven hundred forty-seven".