51355344355315 has 144 divisors (see below), whose sum is σ = 84633305996736. Its totient is φ = 29109925532160.

The previous prime is 51355344355307. The next prime is 51355344355327.

51355344355315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51355344355315 - 2³ = 51355344355307 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 247037997 + ... + 247245793.

It is an arithmetic number, because the mean of its divisors is an integer number (587731291644).

Almost surely, 2^{51355344355315} is an apocalyptic number.

51355344355315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51355344355315 is a deficient number, since it is larger than the sum of its proper divisors (33277961641421).

51355344355315 is a wasteful number, since it uses less digits than its factorization.

51355344355315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207978 (or 207900 counting only the distinct ones).

The product of its digits is 20250000, while the sum is 52.

The spelling of 51355344355315 in words is "fifty-one trillion, three hundred fifty-five billion, three hundred forty-four million, three hundred fifty-five thousand, three hundred fifteen".