53000850 has 72 divisors (see below), whose sum is σ = 152923248. Its totient is φ = 12112800.

The previous prime is 53000837. The next prime is 53000851. The reversal of 53000850 is 5800035.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (53000851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3745 + ... + 10955.

It is an arithmetic number, because the mean of its divisors is an integer number (2123934).

Almost surely, 2^53000850 is an apocalyptic number.

53000850 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 53000850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76461624).

53000850 is an abundant number, since it is smaller than the sum of its proper divisors (99922398).

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

53000850 is a wasteful number, since it uses less digits than its factorization.

53000850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240 (or 7228 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 53000850 is about 7280.1682672861. The cubic root of 53000850 is about 375.6305834887.

Adding to 53000850 its reverse (5800035), we get a palindrome (58800885).

The spelling of 53000850 in words is "fifty-three million, eight hundred fifty", and thus it is an aban number.