655259494 has 4 divisors (see below), whose sum is σ = 982889244. Its totient is φ = 327629746.

The previous prime is 655259491. The next prime is 655259513. The reversal of 655259494 is 494952556.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655259491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163814872 + ... + 163814875.

It is an arithmetic number, because the mean of its divisors is an integer number (245722311).

Almost surely, 2^655259494 is an apocalyptic number.

655259494 is a deficient number, since it is larger than the sum of its proper divisors (327629750).

655259494 is a wasteful number, since it uses less digits than its factorization.

655259494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327629749.

The product of its digits is 1944000, while the sum is 49.

The square root of 655259494 is about 25598.0369169200. The cubic root of 655259494 is about 868.5692315154.

The spelling of 655259494 in words is "six hundred fifty-five million, two hundred fifty-nine thousand, four hundred ninety-four".