256552849 has 8 divisors (see below), whose sum is σ = 297579968. Its totient is φ = 216619920.

The previous prime is 256552843. The next prime is 256552853. The reversal of 256552849 is 948255652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256552849 - 2³ = 256552841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256552799 and 256552808.

It is not an unprimeable number, because it can be changed into a prime (256552841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273042 + ... + 273979.

It is an arithmetic number, because the mean of its divisors is an integer number (37197496).

Almost surely, 2^256552849 is an apocalyptic number.

It is an amenable number.

256552849 is a deficient number, since it is larger than the sum of its proper divisors (41027119).

256552849 is an equidigital number, since it uses as much as digits as its factorization.

256552849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547095.

The product of its digits is 864000, while the sum is 46.

The square root of 256552849 is about 16017.2672138539. The cubic root of 256552849 is about 635.4171718815.

The spelling of 256552849 in words is "two hundred fifty-six million, five hundred fifty-two thousand, eight hundred forty-nine".