53113500 has 288 divisors, whose sum is σ = 194201280. Its totient is φ = 12096000.

The previous prime is 53113499. The next prime is 53113519. The reversal of 53113500 is 531135.

It is a happy number.

53113500 is a `hidden beast` number, since 5 + 311 + 350 + 0 = 666.

53113500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1435482 + ... + 1435518.

It is an arithmetic number, because the mean of its divisors is an integer number (674310).

Almost surely, 2^53113500 is an apocalyptic number.

53113500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53113500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97100640).

53113500 is an abundant number, since it is smaller than the sum of its proper divisors (141087780).

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

53113500 is a wasteful number, since it uses less digits than its factorization.

53113500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 53113500 is about 7287.9009323673. The cubic root of 53113500 is about 375.8965216226.

Adding to 53113500 its reverse (531135), we get a palindrome (53644635).

Multiplying 53113500 by its reverse (531135), we get a square (28210438822500 = 5311350²).

53113500 divided by its reverse (531135) gives a square (100 = 10²).

The spelling of 53113500 in words is "fifty-three million, one hundred thirteen thousand, five hundred".