51215428883 has 2 divisors, whose sum is σ = 51215428884. Its totient is φ = 51215428882.

The previous prime is 51215428843. The next prime is 51215428889. The reversal of 51215428883 is 38882451215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51215428883 is a prime.

It is not a weakly prime, because it can be changed into another prime (51215428889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25607714441 + 25607714442.

It is an arithmetic number, because the mean of its divisors is an integer number (25607714442).

Almost surely, 2^51215428883 is an apocalyptic number.

51215428883 is a deficient number, since it is larger than the sum of its proper divisors (1).

51215428883 is an equidigital number, since it uses as much as digits as its factorization.

51215428883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 614400, while the sum is 47.

The spelling of 51215428883 in words is "fifty-one billion, two hundred fifteen million, four hundred twenty-eight thousand, eight hundred eighty-three".