51343253500 has 576 divisors, whose sum is σ = 154404956160. Its totient is φ = 14696640000.

The previous prime is 51343253497. The next prime is 51343253527. The reversal of 51343253500 is 535234315.

51343253500 = T₃₀₃₆₀ + T₃₀₃₆₁ + ... + T₃₀₄₇₀.

It is a super-2 number, since 2×51343253500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 189458365 + ... + 189458635.

It is an arithmetic number, because the mean of its divisors is an integer number (268064160).

Almost surely, 2^51343253500 is an apocalyptic number.

51343253500 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 51343253500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77202478080).

51343253500 is an abundant number, since it is smaller than the sum of its proper divisors (103061702660).

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

51343253500 is a wasteful number, since it uses less digits than its factorization.

51343253500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 51343253500 its reverse (535234315), we get a palindrome (51878487815).

The spelling of 51343253500 in words is "fifty-one billion, three hundred forty-three million, two hundred fifty-three thousand, five hundred".