53516500 has 24 divisors (see below), whose sum is σ = 116881128. Its totient is φ = 21406400.

The previous prime is 53516497. The next prime is 53516531. The reversal of 53516500 is 561535.

It can be written as a sum of positive squares in 4 ways, for example, as 21904 + 53494596 = 148^2 + 7314^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53017 + ... + 54016.

It is an arithmetic number, because the mean of its divisors is an integer number (4870047).

Almost surely, 2^53516500 is an apocalyptic number.

53516500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53516500 is an abundant number, since it is smaller than the sum of its proper divisors (63364628).

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

53516500 is a wasteful number, since it uses less digits than its factorization.

53516500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107052 (or 107040 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 53516500 is about 7315.4972489913. The cubic root of 53516500 is about 376.8448352639.

The spelling of 53516500 in words is "fifty-three million, five hundred sixteen thousand, five hundred".