630215250 has 64 divisors (see below), whose sum is σ = 1797748992. Its totient is φ = 144048000.

The previous prime is 630215233. The next prime is 630215263. The reversal of 630215250 is 52512036.

It is a super-2 number, since 2×630215250² = 794342522665125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 630215250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54771 + ... + 65270.

It is an arithmetic number, because the mean of its divisors is an integer number (28089828).

Almost surely, 2^630215250 is an apocalyptic number.

630215250 is an abundant number, since it is smaller than the sum of its proper divisors (1167533742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630215250 is a wasteful number, since it uses less digits than its factorization.

630215250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120068 (or 120058 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 630215250 is about 25104.0883124642. The cubic root of 630215250 is about 857.3595097181.

Adding to 630215250 its reverse (52512036), we get a palindrome (682727286).

The spelling of 630215250 in words is "six hundred thirty million, two hundred fifteen thousand, two hundred fifty".