53135131500 has 432 divisors, whose sum is σ = 189120361248. Its totient is φ = 12454560000.

The previous prime is 53135131493. The next prime is 53135131513. The reversal of 53135131500 is 513153135.

53135131500 is a `hidden beast` number, since 531 + 3 + 51 + 31 + 50 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 47568942 + ... + 47570058.

It is an arithmetic number, because the mean of its divisors is an integer number (437778614).

Almost surely, 2^53135131500 is an apocalyptic number.

53135131500 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 53135131500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94560180624).

53135131500 is an abundant number, since it is smaller than the sum of its proper divisors (135985229748).

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

53135131500 is a wasteful number, since it uses less digits than its factorization.

53135131500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

Adding to 53135131500 its reverse (513153135), we get a palindrome (53648284635).

The spelling of 53135131500 in words is "fifty-three billion, one hundred thirty-five million, one hundred thirty-one thousand, five hundred".