655545403 has 2 divisors, whose sum is σ = 655545404. Its totient is φ = 655545402.

The previous prime is 655545383. The next prime is 655545419. The reversal of 655545403 is 304545556.

655545403 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 a de Polignac number, because none of the positive numbers 2^k-655545403 is a prime.

It is not a weakly prime, because it can be changed into another prime (655545463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327772701 + 327772702.

It is an arithmetic number, because the mean of its divisors is an integer number (327772702).

Almost surely, 2^655545403 is an apocalyptic number.

655545403 is a deficient number, since it is larger than the sum of its proper divisors (1).

655545403 is an equidigital number, since it uses as much as digits as its factorization.

655545403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 37.

The square root of 655545403 is about 25603.6208962717. The cubic root of 655545403 is about 868.6955405849.

The spelling of 655545403 in words is "six hundred fifty-five million, five hundred forty-five thousand, four hundred three".