51083656673513 has 4 divisors (see below), whose sum is σ = 51247912804608. Its totient is φ = 50919400542420.

The previous prime is 51083656673503. The next prime is 51083656673561. The reversal of 51083656673513 is 31537665638015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51083656673513 is a prime.

It is a super-2 number, since 2×51083656673513² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51083656673503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82128065081 + ... + 82128065702.

It is an arithmetic number, because the mean of its divisors is an integer number (12811978201152).

Almost surely, 2^{51083656673513} is an apocalyptic number.

It is an amenable number.

51083656673513 is a deficient number, since it is larger than the sum of its proper divisors (164256131095).

51083656673513 is a wasteful number, since it uses less digits than its factorization.

51083656673513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164256131094.

The product of its (nonzero) digits is 40824000, while the sum is 59.

The spelling of 51083656673513 in words is "fifty-one trillion, eighty-three billion, six hundred fifty-six million, six hundred seventy-three thousand, five hundred thirteen".