654560651 has 2 divisors, whose sum is σ = 654560652. Its totient is φ = 654560650.

The previous prime is 654560597. The next prime is 654560713. The reversal of 654560651 is 156065456.

654560651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654560651 - 2²² = 650366347 is a prime.

It is not a weakly prime, because it can be changed into another prime (654560251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327280325 + 327280326.

It is an arithmetic number, because the mean of its divisors is an integer number (327280326).

Almost surely, 2^654560651 is an apocalyptic number.

654560651 is a deficient number, since it is larger than the sum of its proper divisors (1).

654560651 is an equidigital number, since it uses as much as digits as its factorization.

654560651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 654560651 is about 25584.3829513240. The cubic root of 654560651 is about 868.2603414497.

The spelling of 654560651 in words is "six hundred fifty-four million, five hundred sixty thousand, six hundred fifty-one".