51226622053 has 4 divisors (see below), whose sum is σ = 54239952780. Its totient is φ = 48213291328.

The previous prime is 51226622033. The next prime is 51226622059. The reversal of 51226622053 is 35022662215.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47922901569 + 3303720484 = 218913^2 + 57478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51226622053 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 (51226622059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506665338 + ... + 1506665371.

It is an arithmetic number, because the mean of its divisors is an integer number (13559988195).

Almost surely, 2^51226622053 is an apocalyptic number.

It is an amenable number.

51226622053 is a deficient number, since it is larger than the sum of its proper divisors (3013330727).

51226622053 is a wasteful number, since it uses less digits than its factorization.

51226622053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013330726.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 51226622053 in words is "fifty-one billion, two hundred twenty-six million, six hundred twenty-two thousand, fifty-three".