53135250 has 128 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 11692800.

The previous prime is 53135249. The next prime is 53135261. The reversal of 53135250 is 5253135.

53135250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53135250.

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 63 ways as a sum of consecutive naturals, for example, 152076 + ... + 152424.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^53135250 is an apocalyptic number.

53135250 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 53135250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78624000).

53135250 is an abundant number, since it is smaller than the sum of its proper divisors (104112750).

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

53135250 is a wasteful number, since it uses less digits than its factorization.

53135250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 53135250 is about 7289.3929788426. The cubic root of 53135250 is about 375.9478245469.

Adding to 53135250 its reverse (5253135), we get a palindrome (58388385).

The spelling of 53135250 in words is "fifty-three million, one hundred thirty-five thousand, two hundred fifty".