655020461 has 2 divisors, whose sum is σ = 655020462. Its totient is φ = 655020460.

The previous prime is 655020437. The next prime is 655020463. The reversal of 655020461 is 164020556.

655020461 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 can be written as a sum of positive squares in only one way, i.e., 416935561 + 238084900 = 20419^2 + 15430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655020461 is a prime.

Together with 655020463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655020463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327510230 + 327510231.

It is an arithmetic number, because the mean of its divisors is an integer number (327510231).

Almost surely, 2^655020461 is an apocalyptic number.

It is an amenable number.

655020461 is a deficient number, since it is larger than the sum of its proper divisors (1).

655020461 is an equidigital number, since it uses as much as digits as its factorization.

655020461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 655020461 is about 25593.3675197306. The cubic root of 655020461 is about 868.4636031540.

The spelling of 655020461 in words is "six hundred fifty-five million, twenty thousand, four hundred sixty-one".