51544208798 has 4 divisors (see below), whose sum is σ = 77316313200. Its totient is φ = 25772104398.

The previous prime is 51544208797. The next prime is 51544208827. The reversal of 51544208798 is 89780244515.

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

It is a super-2 number, since 2×51544208798² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544208791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886052198 + ... + 12886052201.

It is an arithmetic number, because the mean of its divisors is an integer number (19329078300).

Almost surely, 2^51544208798 is an apocalyptic number.

51544208798 is a deficient number, since it is larger than the sum of its proper divisors (25772104402).

51544208798 is a wasteful number, since it uses less digits than its factorization.

51544208798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25772104401.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 51544208798 in words is "fifty-one billion, five hundred forty-four million, two hundred eight thousand, seven hundred ninety-eight".