53816061800 has 24 divisors (see below), whose sum is σ = 125122344150. Its totient is φ = 21526424640.

The previous prime is 53816061797. The next prime is 53816061839. The reversal of 53816061800 is 816061835.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 44033664964 + 9782396836 = 209842^2 + 98906^2 .

It is a super-2 number, since 2×53816061800² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134539955 + ... + 134540354.

Almost surely, 2^53816061800 is an apocalyptic number.

53816061800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53816061800 is an abundant number, since it is smaller than the sum of its proper divisors (71306282350).

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

53816061800 is a wasteful number, since it uses less digits than its factorization.

53816061800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269080325 (or 269080316 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 53816061800 in words is "fifty-three billion, eight hundred sixteen million, sixty-one thousand, eight hundred".