53105250 has 128 divisors (see below), whose sum is σ = 149071104. Its totient is φ = 12480000.

The previous prime is 53105243. The next prime is 53105257. The reversal of 53105250 is 5250135.

It is an interprime number because it is at equal distance from previous prime (53105243) and next prime (53105257).

It is not an unprimeable number, because it can be changed into a prime (53105257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338172 + ... + 338328.

It is an arithmetic number, because the mean of its divisors is an integer number (1164618).

Almost surely, 2^53105250 is an apocalyptic number.

53105250 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 53105250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74535552).

53105250 is an abundant number, since it is smaller than the sum of its proper divisors (95965854).

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

53105250 is a wasteful number, since it uses less digits than its factorization.

53105250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 53105250 is about 7287.3349037903. The cubic root of 53105250 is about 375.8770582289.

53105250 divided by its product of nonzero digits (750) gives a palindrome (70807).

Adding to 53105250 its reverse (5250135), we get a palindrome (58355385).

The spelling of 53105250 in words is "fifty-three million, one hundred five thousand, two hundred fifty".