655587851 has 2 divisors, whose sum is σ = 655587852. Its totient is φ = 655587850.

The previous prime is 655587787. The next prime is 655587871. The reversal of 655587851 is 158785556.

655587851 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 655587851 - 2⁶ = 655587787 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655587851.

It is not a weakly prime, because it can be changed into another prime (655587871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327793925 + 327793926.

It is an arithmetic number, because the mean of its divisors is an integer number (327793926).

Almost surely, 2^655587851 is an apocalyptic number.

655587851 is a deficient number, since it is larger than the sum of its proper divisors (1).

655587851 is an equidigital number, since it uses as much as digits as its factorization.

655587851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680000, while the sum is 50.

The square root of 655587851 is about 25604.4498281061. The cubic root of 655587851 is about 868.7142901596.

The spelling of 655587851 in words is "six hundred fifty-five million, five hundred eighty-seven thousand, eight hundred fifty-one".