53110442550 has 192 divisors, whose sum is σ = 153080202240. Its totient is φ = 12050064000.

The previous prime is 53110442533. The next prime is 53110442641. The reversal of 53110442550 is 5524401135.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2591845 + ... + 2612255.

It is an arithmetic number, because the mean of its divisors is an integer number (797292720).

Almost surely, 2^53110442550 is an apocalyptic number.

53110442550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53110442550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76540101120).

53110442550 is an abundant number, since it is smaller than the sum of its proper divisors (99969759690).

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

53110442550 is a wasteful number, since it uses less digits than its factorization.

53110442550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20539 (or 20534 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 53110442550 its reverse (5524401135), we get a palindrome (58634843685).

The spelling of 53110442550 in words is "fifty-three billion, one hundred ten million, four hundred forty-two thousand, five hundred fifty".