655137473 has 2 divisors, whose sum is σ = 655137474. Its totient is φ = 655137472.

The previous prime is 655137443. The next prime is 655137491. The reversal of 655137473 is 374731556.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 592046224 + 63091249 = 24332^2 + 7943^2 .

It is a cyclic number.

It is not a de Polignac number, because 655137473 - 2²⁴ = 638360257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655137473.

It is not a weakly prime, because it can be changed into another prime (655137403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327568736 + 327568737.

It is an arithmetic number, because the mean of its divisors is an integer number (327568737).

Almost surely, 2^655137473 is an apocalyptic number.

It is an amenable number.

655137473 is a deficient number, since it is larger than the sum of its proper divisors (1).

655137473 is an equidigital number, since it uses as much as digits as its factorization.

655137473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 41.

The square root of 655137473 is about 25595.6534005288. The cubic root of 655137473 is about 868.5153138097.

The spelling of 655137473 in words is "six hundred fifty-five million, one hundred thirty-seven thousand, four hundred seventy-three".