51266552884 has 12 divisors (see below), whose sum is σ = 89970624324. Its totient is φ = 25560660224.

The previous prime is 51266552881. The next prime is 51266552899. The reversal of 51266552884 is 48825566215.

It can be written as a sum of positive squares in 2 ways, for example, as 33866304784 + 17400248100 = 184028^2 + 131910^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266552881) 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, 18152467 + ... + 18155290.

It is an arithmetic number, because the mean of its divisors is an integer number (7497552027).

Almost surely, 2^51266552884 is an apocalyptic number.

It is an amenable number.

51266552884 is a deficient number, since it is larger than the sum of its proper divisors (38704071440).

51266552884 is a wasteful number, since it uses less digits than its factorization.

51266552884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36308114 (or 36308112 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 52.

The spelling of 51266552884 in words is "fifty-one billion, two hundred sixty-six million, five hundred fifty-two thousand, eight hundred eighty-four".