51126806353 has 4 divisors (see below), whose sum is σ = 58430635840. Its totient is φ = 43822976868.

The previous prime is 51126806293. The next prime is 51126806359. The reversal of 51126806353 is 35360862115.

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 not a de Polignac number, because 51126806353 - 2²⁹ = 50589935441 is a prime.

It is a super-2 number, since 2×51126806353² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51126806359) 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, 3651914733 + ... + 3651914746.

It is an arithmetic number, because the mean of its divisors is an integer number (14607658960).

Almost surely, 2^51126806353 is an apocalyptic number.

It is an amenable number.

51126806353 is a deficient number, since it is larger than the sum of its proper divisors (7303829487).

51126806353 is an equidigital number, since it uses as much as digits as its factorization.

51126806353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303829486.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 51126806353 in words is "fifty-one billion, one hundred twenty-six million, eight hundred six thousand, three hundred fifty-three".