51876949 has 2 divisors, whose sum is σ = 51876950. Its totient is φ = 51876948.

The previous prime is 51876947. The next prime is 51876959. The reversal of 51876949 is 94967815.

51876949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43362225 + 8514724 = 6585^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 51876949 - 2¹ = 51876947 is a prime.

Together with 51876947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51876941) 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 as a sum of consecutive naturals, namely, 25938474 + 25938475.

It is an arithmetic number, because the mean of its divisors is an integer number (25938475).

Almost surely, 2^51876949 is an apocalyptic number.

It is an amenable number.

51876949 is a deficient number, since it is larger than the sum of its proper divisors (1).

51876949 is an equidigital number, since it uses as much as digits as its factorization.

51876949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 51876949 is about 7202.5654457283. The cubic root of 51876949 is about 372.9564669706.

It can be divided in two parts, 51876 and 949, that added together give a palindrome (52825).

The spelling of 51876949 in words is "fifty-one million, eight hundred seventy-six thousand, nine hundred forty-nine".