630523001 has 8 divisors (see below), whose sum is σ = 644333184. Its totient is φ = 616729360.

The previous prime is 630522983. The next prime is 630523007. The reversal of 630523001 is 100325036.

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-630523001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630523007) 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, 102431 + ... + 108411.

It is an arithmetic number, because the mean of its divisors is an integer number (80541648).

Almost surely, 2^630523001 is an apocalyptic number.

It is an amenable number.

630523001 is a deficient number, since it is larger than the sum of its proper divisors (13810183).

630523001 is a wasteful number, since it uses less digits than its factorization.

630523001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8271.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 630523001 is about 25110.2170639762. The cubic root of 630523001 is about 857.4990442180.

Adding to 630523001 its reverse (100325036), we get a palindrome (730848037).

The spelling of 630523001 in words is "six hundred thirty million, five hundred twenty-three thousand, one".