55451404000 has 96 divisors (see below), whose sum is σ = 136450300896. Its totient is φ = 22146995200.

The previous prime is 55451403989. The next prime is 55451404027. The reversal of 55451404000 is 40415455.

It is a self number, because there is not a number n which added to its sum of digits gives 55451404000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2721852 + ... + 2742148.

It is an arithmetic number, because the mean of its divisors is an integer number (1421357301).

Almost surely, 2^55451404000 is an apocalyptic number.

55451404000 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 55451404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68225150448).

55451404000 is an abundant number, since it is smaller than the sum of its proper divisors (80998896896).

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

55451404000 is a wasteful number, since it uses less digits than its factorization.

55451404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21005 (or 20987 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 55451404000 its reverse (40415455), we get a palindrome (55491819455).

The spelling of 55451404000 in words is "fifty-five billion, four hundred fifty-one million, four hundred four thousand".