51567405244 has 6 divisors (see below), whose sum is σ = 90242959184. Its totient is φ = 25783702620.

The previous prime is 51567405217. The next prime is 51567405289. The reversal of 51567405244 is 44250476515.

It is a self number, because there is not a number n which added to its sum of digits gives 51567405244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445925652 + ... + 6445925659.

Almost surely, 2^51567405244 is an apocalyptic number.

It is an amenable number.

51567405244 is a deficient number, since it is larger than the sum of its proper divisors (38675553940).

51567405244 is a wasteful number, since it uses less digits than its factorization.

51567405244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891851315 (or 12891851313 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 43.

It can be divided in two parts, 5156740 and 5244, that added together give a square (5161984 = 2272²).

The spelling of 51567405244 in words is "fifty-one billion, five hundred sixty-seven million, four hundred five thousand, two hundred forty-four".