651530851 has 2 divisors, whose sum is σ = 651530852. Its totient is φ = 651530850.

The previous prime is 651530837. The next prime is 651530863. The reversal of 651530851 is 158035156.

651530851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 651530851 - 2⁹ = 651530339 is a prime.

It is not a weakly prime, because it can be changed into another prime (651530651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325765425 + 325765426.

It is an arithmetic number, because the mean of its divisors is an integer number (325765426).

Almost surely, 2^651530851 is an apocalyptic number.

651530851 is a deficient number, since it is larger than the sum of its proper divisors (1).

651530851 is an equidigital number, since it uses as much as digits as its factorization.

651530851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 651530851 is about 25525.1023700200. The cubic root of 651530851 is about 866.9186147341.

The spelling of 651530851 in words is "six hundred fifty-one million, five hundred thirty thousand, eight hundred fifty-one".