501225001 has 8 divisors (see below), whose sum is σ = 510991200. Its totient is φ = 491501280.

The previous prime is 501224987. The next prime is 501225013. The reversal of 501225001 is 100522105.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501225001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501225401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13746 + ... + 34516.

It is an arithmetic number, because the mean of its divisors is an integer number (63873900).

Almost surely, 2^501225001 is an apocalyptic number.

It is an amenable number.

501225001 is a deficient number, since it is larger than the sum of its proper divisors (9766199).

501225001 is a wasteful number, since it uses less digits than its factorization.

501225001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21239.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 501225001 is about 22388.0548730791. The cubic root of 501225001 is about 794.3481866404.

Adding to 501225001 its reverse (100522105), we get a palindrome (601747106).

The spelling of 501225001 in words is "five hundred one million, two hundred twenty-five thousand, one".