225601007 has 4 divisors (see below), whose sum is σ = 225748200. Its totient is φ = 225453816.

The previous prime is 225600979. The next prime is 225601021. The reversal of 225601007 is 700106522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225601007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225601037) 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, 71273 + ... + 74370.

It is an arithmetic number, because the mean of its divisors is an integer number (56437050).

Almost surely, 2^225601007 is an apocalyptic number.

225601007 is a deficient number, since it is larger than the sum of its proper divisors (147193).

225601007 is a wasteful number, since it uses less digits than its factorization.

225601007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147192.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 225601007 is about 15020.0202063779. The cubic root of 225601007 is about 608.7612656399.

Adding to 225601007 its reverse (700106522), we get a palindrome (925707529).

The spelling of 225601007 in words is "two hundred twenty-five million, six hundred one thousand, seven".