51105533351 has 2 divisors, whose sum is σ = 51105533352. Its totient is φ = 51105533350.

The previous prime is 51105533333. The next prime is 51105533377. The reversal of 51105533351 is 15333550115.

It is a happy number.

51105533351 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 is a cyclic number.

It is not a de Polignac number, because 51105533351 - 2⁶ = 51105533287 is a prime.

It is a super-2 number, since 2×51105533351² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51165533351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552766675 + 25552766676.

It is an arithmetic number, because the mean of its divisors is an integer number (25552766676).

Almost surely, 2^51105533351 is an apocalyptic number.

51105533351 is a deficient number, since it is larger than the sum of its proper divisors (1).

51105533351 is an equidigital number, since it uses as much as digits as its factorization.

51105533351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16875, while the sum is 32.

The spelling of 51105533351 in words is "fifty-one billion, one hundred five million, five hundred thirty-three thousand, three hundred fifty-one".