51038849 has 2 divisors, whose sum is σ = 51038850. Its totient is φ = 51038848.

The previous prime is 51038843. The next prime is 51038881. The reversal of 51038849 is 94883015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50410000 + 628849 = 7100^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 51038849 - 2⁸ = 51038593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51038843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25519424 + 25519425.

It is an arithmetic number, because the mean of its divisors is an integer number (25519425).

Almost surely, 2^51038849 is an apocalyptic number.

It is an amenable number.

51038849 is a deficient number, since it is larger than the sum of its proper divisors (1).

51038849 is an equidigital number, since it uses as much as digits as its factorization.

51038849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 51038849 is about 7144.1478848075. The cubic root of 51038849 is about 370.9371156340.

The spelling of 51038849 in words is "fifty-one million, thirty-eight thousand, eight hundred forty-nine".