53555800 has 48 divisors (see below), whose sum is σ = 125047800. Its totient is φ = 21331200.

The previous prime is 53555791. The next prime is 53555819. The reversal of 53555800 is 855535.

It is a super-3 number, since 3×53555800³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 65796 + ... + 66604.

Almost surely, 2^53555800 is an apocalyptic number.

53555800 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 53555800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62523900).

53555800 is an abundant number, since it is smaller than the sum of its proper divisors (71492000).

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

53555800 is a wasteful number, since it uses less digits than its factorization.

53555800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 53555800 is about 7318.1828345567. The cubic root of 53555800 is about 376.9370583991.

The spelling of 53555800 in words is "fifty-three million, five hundred fifty-five thousand, eight hundred".