51267620203 has 2 divisors, whose sum is σ = 51267620204. Its totient is φ = 51267620202.

The previous prime is 51267620197. The next prime is 51267620221. The reversal of 51267620203 is 30202676215.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51267620203 is a prime.

It is a super-2 number, since 2×51267620203² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51267620233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25633810101 + 25633810102.

It is an arithmetic number, because the mean of its divisors is an integer number (25633810102).

Almost surely, 2^51267620203 is an apocalyptic number.

51267620203 is a deficient number, since it is larger than the sum of its proper divisors (1).

51267620203 is an equidigital number, since it uses as much as digits as its factorization.

51267620203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 51267620203 in words is "fifty-one billion, two hundred sixty-seven million, six hundred twenty thousand, two hundred three".