51552333444 has 12 divisors (see below), whose sum is σ = 120288778064. Its totient is φ = 17184111144.

The previous prime is 51552333403. The next prime is 51552333449. The reversal of 51552333444 is 44433325515.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×51552333444² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51552333449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148013882 + ... + 2148013905.

Almost surely, 2^51552333444 is an apocalyptic number.

It is an amenable number.

51552333444 is an abundant number, since it is smaller than the sum of its proper divisors (68736444620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51552333444 is a wasteful number, since it uses less digits than its factorization.

51552333444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296027794 (or 4296027792 counting only the distinct ones).

The product of its digits is 432000, while the sum is 39.

Adding to 51552333444 its reverse (44433325515), we get a palindrome (95985658959).

The spelling of 51552333444 in words is "fifty-one billion, five hundred fifty-two million, three hundred thirty-three thousand, four hundred forty-four".