51441213504 has 224 divisors, whose sum is σ = 144631452672. Its totient is φ = 16109568000.

The previous prime is 51441213503. The next prime is 51441213541. The reversal of 51441213504 is 40531214415.

It is a super-2 number, since 2×51441213504² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51441213503) 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, 67596484 + ... + 67597244.

It is an arithmetic number, because the mean of its divisors is an integer number (645676128).

Almost surely, 2^51441213504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51441213504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72315726336).

51441213504 is an abundant number, since it is smaller than the sum of its proper divisors (93190239168).

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

51441213504 is a wasteful number, since it uses less digits than its factorization.

51441213504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51441213504 its reverse (40531214415), we get a palindrome (91972427919).

The spelling of 51441213504 in words is "fifty-one billion, four hundred forty-one million, two hundred thirteen thousand, five hundred four".