655733497 has 4 divisors (see below), whose sum is σ = 659356516. Its totient is φ = 652110480.

The previous prime is 655733479. The next prime is 655733501. The reversal of 655733497 is 794337556.

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

It can be written as a sum of positive squares in 2 ways, for example, as 160047801 + 495685696 = 12651^2 + 22264^2 .

It is a cyclic number.

It is not a de Polignac number, because 655733497 - 2²³ = 647344889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655733497.

It is not an unprimeable number, because it can be changed into a prime (655733467) 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 in 3 ways as a sum of consecutive naturals, for example, 1811238 + ... + 1811599.

It is an arithmetic number, because the mean of its divisors is an integer number (164839129).

Almost surely, 2^655733497 is an apocalyptic number.

It is an amenable number.

655733497 is a deficient number, since it is larger than the sum of its proper divisors (3623019).

655733497 is a wasteful number, since it uses less digits than its factorization.

655733497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623018.

The product of its digits is 2381400, while the sum is 49.

The square root of 655733497 is about 25607.2938242213. The cubic root of 655733497 is about 868.7786168515.

The spelling of 655733497 in words is "six hundred fifty-five million, seven hundred thirty-three thousand, four hundred ninety-seven".