53015500 has 24 divisors (see below), whose sum is σ = 115786944. Its totient is φ = 21206000.

The previous prime is 53015497. The next prime is 53015519. The reversal of 53015500 is 551035.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52516 + ... + 53515.

It is an arithmetic number, because the mean of its divisors is an integer number (4824456).

Almost surely, 2^53015500 is an apocalyptic number.

53015500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53015500 is an abundant number, since it is smaller than the sum of its proper divisors (62771444).

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

53015500 is a wasteful number, since it uses less digits than its factorization.

53015500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106050 (or 106038 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 53015500 is about 7281.1743558302. The cubic root of 53015500 is about 375.6651897330.

Adding to 53015500 its reverse (551035), we get a palindrome (53566535).

It can be divided in two parts, 5301 and 5500, that added together give a palindrome (10801).

The spelling of 53015500 in words is "fifty-three million, fifteen thousand, five hundred".