51240355304215 has 64 divisors (see below), whose sum is σ = 81002509885440. Its totient is φ = 30145818176640.

The previous prime is 51240355304189. The next prime is 51240355304227.

51240355304215 is nontrivially palindromic in base 10.

51240355304215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51240355304215 - 2⁷ = 51240355304087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11393329 + ... + 15241018.

It is an arithmetic number, because the mean of its divisors is an integer number (1265664216960).

Almost surely, 2^{51240355304215} is an apocalyptic number.

51240355304215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51240355304215 is a deficient number, since it is larger than the sum of its proper divisors (29762154581225).

51240355304215 is a wasteful number, since it uses less digits than its factorization.

51240355304215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26634652.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 51240355304215 in words is "fifty-one trillion, two hundred forty billion, three hundred fifty-five million, three hundred four thousand, two hundred fifteen".