53851800 has 48 divisors (see below), whose sum is σ = 166942440. Its totient is φ = 14360320.

The previous prime is 53851789. The next prime is 53851807. The reversal of 53851800 is 815835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53851807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44277 + ... + 45476.

Almost surely, 2^53851800 is an apocalyptic number.

53851800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53851800 is an abundant number, since it is smaller than the sum of its proper divisors (113090640).

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

53851800 is a wasteful number, since it uses less digits than its factorization.

53851800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89772 (or 89763 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 53851800 is about 7338.3785675039. The cubic root of 53851800 is about 377.6302198296.

The spelling of 53851800 in words is "fifty-three million, eight hundred fifty-one thousand, eight hundred".