53513250 has 64 divisors (see below), whose sum is σ = 152665344. Its totient is φ = 12230400.

The previous prime is 53513237. The next prime is 53513261. The reversal of 53513250 is 5231535.

It is a self number, because there is not a number n which added to its sum of digits gives 53513250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154 + ... + 10346.

It is an arithmetic number, because the mean of its divisors is an integer number (2385396).

Almost surely, 2^53513250 is an apocalyptic number.

53513250 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 53513250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76332672).

53513250 is an abundant number, since it is smaller than the sum of its proper divisors (99152094).

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

53513250 is a wasteful number, since it uses less digits than its factorization.

53513250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220 (or 10210 counting only the distinct ones).

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

The square root of 53513250 is about 7315.2751144437. The cubic root of 53513250 is about 376.8372066478.

Adding to 53513250 its reverse (5231535), we get a palindrome (58744785).

The spelling of 53513250 in words is "fifty-three million, five hundred thirteen thousand, two hundred fifty".