655397459 has 2 divisors, whose sum is σ = 655397460. Its totient is φ = 655397458.

The previous prime is 655397453. The next prime is 655397461. The reversal of 655397459 is 954793556.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655397459 is a prime.

Together with 655397461, it forms a pair of twin primes.

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 655397459.

It is not a weakly prime, because it can be changed into another prime (655397453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327698729 + 327698730.

It is an arithmetic number, because the mean of its divisors is an integer number (327698730).

Almost surely, 2^655397459 is an apocalyptic number.

655397459 is a deficient number, since it is larger than the sum of its proper divisors (1).

655397459 is an equidigital number, since it uses as much as digits as its factorization.

655397459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5103000, while the sum is 53.

The square root of 655397459 is about 25600.7316106396. The cubic root of 655397459 is about 868.6301863716.

The spelling of 655397459 in words is "six hundred fifty-five million, three hundred ninety-seven thousand, four hundred fifty-nine".