655256297 has 4 divisors (see below), whose sum is σ = 655820880. Its totient is φ = 654691716.

The previous prime is 655256291. The next prime is 655256309. The reversal of 655256297 is 792652556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655256297 - 2¹⁴ = 655239913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655256291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280547 + ... + 282872.

It is an arithmetic number, because the mean of its divisors is an integer number (163955220).

Almost surely, 2^655256297 is an apocalyptic number.

It is an amenable number.

655256297 is a deficient number, since it is larger than the sum of its proper divisors (564583).

655256297 is a wasteful number, since it uses less digits than its factorization.

655256297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564582.

The product of its digits is 1134000, while the sum is 47.

The square root of 655256297 is about 25597.9744706490. The cubic root of 655256297 is about 868.5678189349.

The spelling of 655256297 in words is "six hundred fifty-five million, two hundred fifty-six thousand, two hundred ninety-seven".