53755543400 has 72 divisors (see below), whose sum is σ = 134625218070. Its totient is φ = 19843835520.

The previous prime is 53755543399. The next prime is 53755543409. The reversal of 53755543400 is 434555735.

It can be written as a sum of positive squares in 3 ways, for example, as 29855001796 + 23900541604 = 172786^2 + 154598^2 .

It is not an unprimeable number, because it can be changed into a prime (53755543409) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11819927 + ... + 11824473.

Almost surely, 2^53755543400 is an apocalyptic number.

53755543400 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 53755543400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67312609035).

53755543400 is an abundant number, since it is smaller than the sum of its proper divisors (80869674670).

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

53755543400 is an equidigital number, since it uses as much as digits as its factorization.

53755543400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9123 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 41.

The spelling of 53755543400 in words is "fifty-three billion, seven hundred fifty-five million, five hundred forty-three thousand, four hundred".