53025017850 has 480 divisors, whose sum is σ = 173969579520. Its totient is φ = 11772008640.

The previous prime is 53025017821. The next prime is 53025017887. The reversal of 53025017850 is 5871052035.

53025017850 is a `hidden beast` number, since 5 + 30 + 2 + 501 + 78 + 50 = 666.

It is a Curzon number.

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 239 ways as a sum of consecutive naturals, for example, 296229061 + ... + 296229239.

It is an arithmetic number, because the mean of its divisors is an integer number (362436624).

Almost surely, 2^53025017850 is an apocalyptic number.

53025017850 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 53025017850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86984789760).

53025017850 is an abundant number, since it is smaller than the sum of its proper divisors (120944561670).

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

53025017850 is an equidigital number, since it uses as much as digits as its factorization.

53025017850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 53025017850 its reverse (5871052035), we get a palindrome (58896069885).

The spelling of 53025017850 in words is "fifty-three billion, twenty-five million, seventeen thousand, eight hundred fifty".