51035504587 has 2 divisors, whose sum is σ = 51035504588. Its totient is φ = 51035504586.

The previous prime is 51035504581. The next prime is 51035504633. The reversal of 51035504587 is 78540553015.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51035504587 - 2³¹ = 48888020939 is a prime.

It is not a weakly prime, because it can be changed into another prime (51035504581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25517752293 + 25517752294.

It is an arithmetic number, because the mean of its divisors is an integer number (25517752294).

Almost surely, 2^51035504587 is an apocalyptic number.

51035504587 is a deficient number, since it is larger than the sum of its proper divisors (1).

51035504587 is an equidigital number, since it uses as much as digits as its factorization.

51035504587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 51035504587 in words is "fifty-one billion, thirty-five million, five hundred four thousand, five hundred eighty-seven".