55040334400 has 42 divisors (see below), whose sum is σ = 135433626770. Its totient is φ = 22016133120.

The previous prime is 55040334361. The next prime is 55040334407. The reversal of 55040334400 is 443304055.

It can be written as a sum of positive squares in 3 ways, for example, as 818417664 + 54221916736 = 28608^2 + 232856^2 .

It is not an unprimeable number, because it can be changed into a prime (55040334407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17198505 + ... + 17201704.

Almost surely, 2^55040334400 is an apocalyptic number.

55040334400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55040334400 is an abundant number, since it is smaller than the sum of its proper divisors (80393292370).

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

55040334400 is a wasteful number, since it uses less digits than its factorization.

55040334400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34400231 (or 34400216 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 55040334400 its reverse (443304055), we get a palindrome (55483638455).

The spelling of 55040334400 in words is "fifty-five billion, forty million, three hundred thirty-four thousand, four hundred".