51521141052013 has 8 divisors (see below), whose sum is σ = 51895927617248. Its totient is φ = 51147070413264.

The previous prime is 51521141051999. The next prime is 51521141052019. The reversal of 51521141052013 is 31025014112515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51521141052013 - 2⁵ = 51521141051981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51521141052019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178837170 + ... + 179125027.

It is an arithmetic number, because the mean of its divisors is an integer number (6486990952156).

Almost surely, 2^{51521141052013} is an apocalyptic number.

It is an amenable number.

51521141052013 is a deficient number, since it is larger than the sum of its proper divisors (374786565235).

51521141052013 is a wasteful number, since it uses less digits than its factorization.

51521141052013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357963243.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 51521141052013 its reverse (31025014112515), we get a palindrome (82546155164528).

The spelling of 51521141052013 in words is "fifty-one trillion, five hundred twenty-one billion, one hundred forty-one million, fifty-two thousand, thirteen".