53515050 has 48 divisors (see below), whose sum is σ = 133464672. Its totient is φ = 14190400.

The previous prime is 53515037. The next prime is 53515057. The reversal of 53515050 is 5051535.

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 53515050.

It is not an unprimeable number, because it can be changed into a prime (53515057) 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 23 ways as a sum of consecutive naturals, for example, 28645 + ... + 30455.

It is an arithmetic number, because the mean of its divisors is an integer number (2780514).

Almost surely, 2^53515050 is an apocalyptic number.

53515050 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 53515050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66732336).

53515050 is an abundant number, since it is smaller than the sum of its proper divisors (79949622).

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

53515050 is a wasteful number, since it uses less digits than its factorization.

53515050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 53515050 is about 7315.3981436419. The cubic root of 53515050 is about 376.8414317656.

Adding to 53515050 its reverse (5051535), we get a palindrome (58566585).

It can be divided in two parts, 5351 and 5050, that added together give a palindrome (10401).

The spelling of 53515050 in words is "fifty-three million, five hundred fifteen thousand, fifty".