53505500 has 48 divisors (see below), whose sum is σ = 118014624. Its totient is φ = 21190400.

The previous prime is 53505497. The next prime is 53505503. The reversal of 53505500 is 550535.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53505497) and next prime (53505503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53505503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56027 + ... + 56973.

It is an arithmetic number, because the mean of its divisors is an integer number (2458638).

Almost surely, 2^53505500 is an apocalyptic number.

53505500 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 53505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59007312).

53505500 is an abundant number, since it is smaller than the sum of its proper divisors (64509124).

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

53505500 is a wasteful number, since it uses less digits than its factorization.

53505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 53505500 is about 7314.7453817614. The cubic root of 53505500 is about 376.8190140858.

The spelling of 53505500 in words is "fifty-three million, five hundred five thousand, five hundred".