655468289 has 16 divisors (see below), whose sum is σ = 789734400. Its totient is φ = 531449424.

The previous prime is 655468279. The next prime is 655468301. The reversal of 655468289 is 982864556.

It is a cyclic number.

It is not a de Polignac number, because 655468289 - 2⁴ = 655468273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655468289.

It is not an unprimeable number, because it can be changed into a prime (655468259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93302 + ... + 100080.

It is an arithmetic number, because the mean of its divisors is an integer number (49358400).

Almost surely, 2^655468289 is an apocalyptic number.

It is an amenable number.

655468289 is a deficient number, since it is larger than the sum of its proper divisors (134266111).

655468289 is a wasteful number, since it uses less digits than its factorization.

655468289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7532.

The product of its digits is 4147200, while the sum is 53.

The square root of 655468289 is about 25602.1149321692. The cubic root of 655468289 is about 868.6614767278.

The spelling of 655468289 in words is "six hundred fifty-five million, four hundred sixty-eight thousand, two hundred eighty-nine".