51256241 has 8 divisors (see below), whose sum is σ = 54351720. Its totient is φ = 48169728.

The previous prime is 51256229. The next prime is 51256277. The reversal of 51256241 is 14265215.

51256241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3591025 + 47665216 = 1895^2 + 6904^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51256241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51256241.

It is not an unprimeable number, because it can be changed into a prime (51256201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12275 + ... + 15911.

It is an arithmetic number, because the mean of its divisors is an integer number (6793965).

Almost surely, 2^51256241 is an apocalyptic number.

It is an amenable number.

51256241 is a deficient number, since it is larger than the sum of its proper divisors (3095479).

51256241 is a wasteful number, since it uses less digits than its factorization.

51256241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483.

The product of its digits is 2400, while the sum is 26.

The square root of 51256241 is about 7159.3464087164. The cubic root of 51256241 is about 371.4630192269.

The spelling of 51256241 in words is "fifty-one million, two hundred fifty-six thousand, two hundred forty-one".