225001245 has 32 divisors (see below), whose sum is σ = 418187520. Its totient is φ = 101168640.

The previous prime is 225001237. The next prime is 225001291. The reversal of 225001245 is 542100522.

It is a happy number.

It is not a de Polignac number, because 225001245 - 2³ = 225001237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11160 + ... + 23969.

It is an arithmetic number, because the mean of its divisors is an integer number (13068360).

Almost surely, 2^225001245 is an apocalyptic number.

It is an amenable number.

225001245 is a deficient number, since it is larger than the sum of its proper divisors (193186275).

225001245 is a wasteful number, since it uses less digits than its factorization.

225001245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35205.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 225001245 is about 15000.0414999426. The cubic root of 225001245 is about 608.2213213836.

Adding to 225001245 its reverse (542100522), we get a palindrome (767101767).

The spelling of 225001245 in words is "two hundred twenty-five million, one thousand, two hundred forty-five".