51516553545014 has 4 divisors (see below), whose sum is σ = 77274830317524. Its totient is φ = 25758276772506.

The previous prime is 51516553544977. The next prime is 51516553545029. The reversal of 51516553545014 is 41054535561515.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12879138386252 + ... + 12879138386255.

It is an arithmetic number, because the mean of its divisors is an integer number (19318707579381).

Almost surely, 2^{51516553545014} is an apocalyptic number.

51516553545014 is a deficient number, since it is larger than the sum of its proper divisors (25758276772510).

51516553545014 is a wasteful number, since it uses less digits than its factorization.

51516553545014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25758276772509.

The product of its (nonzero) digits is 4500000, while the sum is 50.

The spelling of 51516553545014 in words is "fifty-one trillion, five hundred sixteen billion, five hundred fifty-three million, five hundred forty-five thousand, fourteen".