51054200243 has 2 divisors, whose sum is σ = 51054200244. Its totient is φ = 51054200242.

The previous prime is 51054200209. The next prime is 51054200257. The reversal of 51054200243 is 34200245015.

It is a happy number.

51054200243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51054200243 - 2²⁴ = 51037423027 is a prime.

It is not a weakly prime, because it can be changed into another prime (51054200203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527100121 + 25527100122.

It is an arithmetic number, because the mean of its divisors is an integer number (25527100122).

Almost surely, 2^51054200243 is an apocalyptic number.

51054200243 is a deficient number, since it is larger than the sum of its proper divisors (1).

51054200243 is an equidigital number, since it uses as much as digits as its factorization.

51054200243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 51054200243 its reverse (34200245015), we get a palindrome (85254445258).

The spelling of 51054200243 in words is "fifty-one billion, fifty-four million, two hundred thousand, two hundred forty-three".