53018250 has 64 divisors (see below), whose sum is σ = 133346304. Its totient is φ = 14030400.

The previous prime is 53018219. The next prime is 53018281. The reversal of 53018250 is 5281035.

It is an interprime number because it is at equal distance from previous prime (53018219) and next prime (53018281).

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 53018250.

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, 167092 + ... + 167408.

It is an arithmetic number, because the mean of its divisors is an integer number (2083536).

Almost surely, 2^53018250 is an apocalyptic number.

53018250 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 53018250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66673152).

53018250 is an abundant number, since it is smaller than the sum of its proper divisors (80328054).

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

53018250 is a wasteful number, since it uses less digits than its factorization.

53018250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 53018250 is about 7281.3631965450. The cubic root of 53018250 is about 375.6716850750.

Adding to 53018250 its reverse (5281035), we get a palindrome (58299285).

The spelling of 53018250 in words is "fifty-three million, eighteen thousand, two hundred fifty".