225011001 has 8 divisors (see below), whose sum is σ = 313058880. Its totient is φ = 143485232.

The previous prime is 225010969. The next prime is 225011027. The reversal of 225011001 is 100110522.

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

It is a cyclic number.

It is not a de Polignac number, because 225011001 - 2⁵ = 225010969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225011041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630446 + ... + 1630583.

It is an arithmetic number, because the mean of its divisors is an integer number (39132360).

Almost surely, 2^225011001 is an apocalyptic number.

It is an amenable number.

225011001 is a deficient number, since it is larger than the sum of its proper divisors (88047879).

225011001 is a wasteful number, since it uses less digits than its factorization.

225011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261055.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 225011001 is about 15000.3666955178. The cubic root of 225011001 is about 608.2301120334.

Adding to 225011001 its reverse (100110522), we get a palindrome (325121523).

The spelling of 225011001 in words is "two hundred twenty-five million, eleven thousand, one".