51553866083 has 2 divisors, whose sum is σ = 51553866084. Its totient is φ = 51553866082.

The previous prime is 51553866079. The next prime is 51553866107. The reversal of 51553866083 is 38066835515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51553866083 - 2² = 51553866079 is a prime.

It is a super-2 number, since 2×51553866083² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51553866043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776933041 + 25776933042.

It is an arithmetic number, because the mean of its divisors is an integer number (25776933042).

Almost surely, 2^51553866083 is an apocalyptic number.

51553866083 is a deficient number, since it is larger than the sum of its proper divisors (1).

51553866083 is an equidigital number, since it uses as much as digits as its factorization.

51553866083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 51553866083 in words is "fifty-one billion, five hundred fifty-three million, eight hundred sixty-six thousand, eighty-three".