53015850 has 96 divisors (see below), whose sum is σ = 147579840. Its totient is φ = 13993920.

The previous prime is 53015821. The next prime is 53015863. The reversal of 53015850 is 5851035.

53015850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 233437 + ... + 233663.

It is an arithmetic number, because the mean of its divisors is an integer number (1537290).

Almost surely, 2^53015850 is an apocalyptic number.

53015850 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 53015850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73789920).

53015850 is an abundant number, since it is smaller than the sum of its proper divisors (94563990).

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

53015850 is a wasteful number, since it uses less digits than its factorization.

53015850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 53015850 is about 7281.1983903750. The cubic root of 53015850 is about 375.6660164254. Note that the first 3 decimals are identical.

Adding to 53015850 its reverse (5851035), we get a palindrome (58866885).

The spelling of 53015850 in words is "fifty-three million, fifteen thousand, eight hundred fifty".