53432250 has 64 divisors (see below), whose sum is σ = 134424576. Its totient is φ = 14136000.

The previous prime is 53432231. The next prime is 53432263. The reversal of 53432250 is 5223435.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53432250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143064 + ... + 143436.

It is an arithmetic number, because the mean of its divisors is an integer number (2100384).

Almost surely, 2^53432250 is an apocalyptic number.

53432250 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 53432250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67212288).

53432250 is an abundant number, since it is smaller than the sum of its proper divisors (80992326).

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

53432250 is a wasteful number, since it uses less digits than its factorization.

53432250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53432250 is about 7309.7366573632. The cubic root of 53432250 is about 376.6469782001.

Adding to 53432250 its reverse (5223435), we get a palindrome (58655685).

The spelling of 53432250 in words is "fifty-three million, four hundred thirty-two thousand, two hundred fifty".