53351323500 has 192 divisors, whose sum is σ = 157362476544. Its totient is φ = 14044576000.

The previous prime is 53351323489. The next prime is 53351323517. The reversal of 53351323500 is 532315335.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78805162 + ... + 78805838.

It is an arithmetic number, because the mean of its divisors is an integer number (819596232).

Almost surely, 2^53351323500 is an apocalyptic number.

53351323500 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 53351323500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78681238272).

53351323500 is an abundant number, since it is smaller than the sum of its proper divisors (104011153044).

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

53351323500 is a wasteful number, since it uses less digits than its factorization.

53351323500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 30.

Adding to 53351323500 its reverse (532315335), we get a palindrome (53883638835).

The spelling of 53351323500 in words is "fifty-three billion, three hundred fifty-one million, three hundred twenty-three thousand, five hundred".