51355512587 has 2 divisors, whose sum is σ = 51355512588. Its totient is φ = 51355512586.

The previous prime is 51355512499. The next prime is 51355512601. The reversal of 51355512587 is 78521555315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51355512587 - 2⁸ = 51355512331 is a prime.

It is a super-3 number, since 3×51355512587³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51355542587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677756293 + 25677756294.

It is an arithmetic number, because the mean of its divisors is an integer number (25677756294).

Almost surely, 2^51355512587 is an apocalyptic number.

51355512587 is a deficient number, since it is larger than the sum of its proper divisors (1).

51355512587 is an equidigital number, since it uses as much as digits as its factorization.

51355512587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050000, while the sum is 47.

The spelling of 51355512587 in words is "fifty-one billion, three hundred fifty-five million, five hundred twelve thousand, five hundred eighty-seven".