53550240400 has 60 divisors (see below), whose sum is σ = 129928357044. Its totient is φ = 21208000000.

The previous prime is 53550240353. The next prime is 53550240409. The reversal of 53550240400 is 404205535.

It can be written as a sum of positive squares in 6 ways, for example, as 810199296 + 52740041104 = 28464^2 + 229652^2 .

It is not an unprimeable number, because it can be changed into a prime (53550240409) 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, 622351 + ... + 703150.

Almost surely, 2^53550240400 is an apocalyptic number.

53550240400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53550240400 is an abundant number, since it is smaller than the sum of its proper divisors (76378116644).

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

53550240400 is a wasteful number, since it uses less digits than its factorization.

53550240400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325620 (or 1325609 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 53550240400 its reverse (404205535), we get a palindrome (53954445935).

The spelling of 53550240400 in words is "fifty-three billion, five hundred fifty million, two hundred forty thousand, four hundred".