651032530 has 16 divisors (see below), whose sum is σ = 1233535680. Its totient is φ = 246706992.

The previous prime is 651032521. The next prime is 651032531. The reversal of 651032530 is 35230156.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 651032495 and 651032504.

It is not an unprimeable number, because it can be changed into a prime (651032531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713054 + ... + 1713433.

It is an arithmetic number, because the mean of its divisors is an integer number (77095980).

Almost surely, 2^651032530 is an apocalyptic number.

651032530 is a deficient number, since it is larger than the sum of its proper divisors (582503150).

651032530 is a wasteful number, since it uses less digits than its factorization.

651032530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426513.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 651032530 is about 25515.3391119930. The cubic root of 651032530 is about 866.6975385124.

Adding to 651032530 its reverse (35230156), we get a palindrome (686262686).

The spelling of 651032530 in words is "six hundred fifty-one million, thirty-two thousand, five hundred thirty".