51072437203 has 2 divisors, whose sum is σ = 51072437204. Its totient is φ = 51072437202.

The previous prime is 51072437191. The next prime is 51072437219. The reversal of 51072437203 is 30273427015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51072437203 - 2⁹ = 51072436691 is a prime.

It is not a weakly prime, because it can be changed into another prime (51072437303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25536218601 + 25536218602.

It is an arithmetic number, because the mean of its divisors is an integer number (25536218602).

Almost surely, 2^51072437203 is an apocalyptic number.

51072437203 is a deficient number, since it is larger than the sum of its proper divisors (1).

51072437203 is an equidigital number, since it uses as much as digits as its factorization.

51072437203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 51072437203 in words is "fifty-one billion, seventy-two million, four hundred thirty-seven thousand, two hundred three".