225049001 has 4 divisors (see below), whose sum is σ = 226215252. Its totient is φ = 223882752.

The previous prime is 225048991. The next prime is 225049007. The reversal of 225049001 is 100940522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150675625 + 74373376 = 12275^2 + 8624^2 .

It is a cyclic number.

It is not a de Polignac number, because 225049001 - 2¹⁴ = 225032617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225049007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 582836 + ... + 583221.

It is an arithmetic number, because the mean of its divisors is an integer number (56553813).

Almost surely, 2^225049001 is an apocalyptic number.

It is an amenable number.

225049001 is a deficient number, since it is larger than the sum of its proper divisors (1166251).

225049001 is a wasteful number, since it uses less digits than its factorization.

225049001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166250.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 225049001 is about 15001.6332777468. The cubic root of 225049001 is about 608.2643495347.

Adding to 225049001 its reverse (100940522), we get a palindrome (325989523).

The spelling of 225049001 in words is "two hundred twenty-five million, forty-nine thousand, one".