53685800 has 96 divisors (see below), whose sum is σ = 147371520. Its totient is φ = 17798400.

The previous prime is 53685781. The next prime is 53685803. The reversal of 53685800 is 858635.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (53685803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42782 + ... + 44018.

It is an arithmetic number, because the mean of its divisors is an integer number (1535120).

Almost surely, 2^53685800 is an apocalyptic number.

53685800 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 53685800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73685760).

53685800 is an abundant number, since it is smaller than the sum of its proper divisors (93685720).

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

53685800 is a wasteful number, since it uses less digits than its factorization.

53685800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 53685800 is about 7327.0594374551. The cubic root of 53685800 is about 377.2418011309.

The spelling of 53685800 in words is "fifty-three million, six hundred eighty-five thousand, eight hundred".