55400000000 has 180 divisors, whose sum is σ = 138864186714. Its totient is φ = 22080000000.

The previous prime is 55399999979. The next prime is 55400000011. The reversal of 55400000000 is 455.

It can be written as a sum of positive squares in 9 ways, for example, as 48759705856 + 6640294144 = 220816^2 + 81488^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 199999862 + ... + 200000138.

Almost surely, 2^55400000000 is an apocalyptic number.

55400000000 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 55400000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69432093357).

55400000000 is an abundant number, since it is smaller than the sum of its proper divisors (83464186714).

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

55400000000 is an frugal number, since it uses more digits than its factorization.

55400000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

Adding to 55400000000 its reverse (455), we get a palindrome (55400000455).

It can be divided in two parts, 5 and 5400000000, that multiplied together give a cube (27000000000 = 3000³).

The spelling of 55400000000 in words is "fifty-five billion, four hundred million", and thus it is an aban number.