611530630 has 32 divisors (see below), whose sum is σ = 1190318976. Its totient is φ = 225321984.

The previous prime is 611530609. The next prime is 611530643. The reversal of 611530630 is 36035116.

611530630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×611530630² = 747939422856393800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 611530595 and 611530604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30279 + ... + 46258.

It is an arithmetic number, because the mean of its divisors is an integer number (37197468).

Almost surely, 2^611530630 is an apocalyptic number.

611530630 is a deficient number, since it is larger than the sum of its proper divisors (578788346).

611530630 is a wasteful number, since it uses less digits than its factorization.

611530630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76608.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 611530630 is about 24729.1453552281. The cubic root of 611530630 is about 848.8013693646.

Adding to 611530630 its reverse (36035116), we get a palindrome (647565746).

The spelling of 611530630 in words is "six hundred eleven million, five hundred thirty thousand, six hundred thirty".