51522204000 has 192 divisors, whose sum is σ = 173350037952. Its totient is φ = 13367808000.

The previous prime is 51522203989. The next prime is 51522204001. The reversal of 51522204000 is 40222515.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51522204001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385980 + ... + 502020.

It is an arithmetic number, because the mean of its divisors is an integer number (902864781).

Almost surely, 2^51522204000 is an apocalyptic number.

51522204000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51522204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86675018976).

51522204000 is an abundant number, since it is smaller than the sum of its proper divisors (121827833952).

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

51522204000 is a wasteful number, since it uses less digits than its factorization.

51522204000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116106 (or 116088 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 51522204000 its reverse (40222515), we get a palindrome (51562426515).

The spelling of 51522204000 in words is "fifty-one billion, five hundred twenty-two million, two hundred four thousand".