655827251 has 4 divisors (see below), whose sum is σ = 655953312. Its totient is φ = 655701192.

The previous prime is 655827223. The next prime is 655827259. The reversal of 655827251 is 152728556.

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

It is a cyclic number.

It is not a de Polignac number, because 655827251 - 2⁶ = 655827187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655827199 and 655827208.

It is not an unprimeable number, because it can be changed into a prime (655827259) 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, 54875 + ... + 65748.

It is an arithmetic number, because the mean of its divisors is an integer number (163988328).

Almost surely, 2^655827251 is an apocalyptic number.

655827251 is a deficient number, since it is larger than the sum of its proper divisors (126061).

655827251 is a wasteful number, since it uses less digits than its factorization.

655827251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126060.

The product of its digits is 168000, while the sum is 41.

The square root of 655827251 is about 25609.1243700366. The cubic root of 655827251 is about 868.8200196415.

The spelling of 655827251 in words is "six hundred fifty-five million, eight hundred twenty-seven thousand, two hundred fifty-one".