256224049 has 3 divisors (see below), whose sum is σ = 256240057. Its totient is φ = 256208042.

The previous prime is 256224043. The next prime is 256224103. The reversal of 256224049 is 940422652.

The square root of 256224049 is 16007.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 256224049 - 2⁹ = 256223537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256224043) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8004 + ... + 24010.

Almost surely, 2^256224049 is an apocalyptic number.

256224049 is the 16007-th square number.

256224049 is the 8004-th centered octagonal number.

It is an amenable number.

256224049 is a deficient number, since it is larger than the sum of its proper divisors (16008).

256224049 is an frugal number, since it uses more digits than its factorization.

256224049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32014 (or 16007 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The cubic root of 256224049 is about 635.1456040754.

The spelling of 256224049 in words is "two hundred fifty-six million, two hundred twenty-four thousand, forty-nine".