51023252322 has 128 divisors (see below), whose sum is σ = 132261880320. Its totient is φ = 14277669120.

The previous prime is 51023252281. The next prime is 51023252323. The reversal of 51023252322 is 22325232015.

51023252322 is a `hidden beast` number, since 5 + 10 + 2 + 325 + 2 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51023252323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13240548 + ... + 13244400.

It is an arithmetic number, because the mean of its divisors is an integer number (1033295940).

Almost surely, 2^51023252322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51023252322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66130940160).

51023252322 is an abundant number, since it is smaller than the sum of its proper divisors (81238627998).

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

51023252322 is a wasteful number, since it uses less digits than its factorization.

51023252322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585 (or 4579 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 51023252322 its reverse (22325232015), we get a palindrome (73348484337).

The spelling of 51023252322 in words is "fifty-one billion, twenty-three million, two hundred fifty-two thousand, three hundred twenty-two".