55143451000 has 384 divisors, whose sum is σ = 149425436160. Its totient is φ = 19008000000.

The previous prime is 55143450997. The next prime is 55143451003. The reversal of 55143451000 is 15434155.

It is an interprime number because it is at equal distance from previous prime (55143450997) and next prime (55143451003).

It is a self number, because there is not a number n which added to its sum of digits gives 55143451000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55143451003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 228810880 + ... + 228811120.

It is an arithmetic number, because the mean of its divisors is an integer number (389128740).

Almost surely, 2^55143451000 is an apocalyptic number.

55143451000 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 55143451000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74712718080).

55143451000 is an abundant number, since it is smaller than the sum of its proper divisors (94281985160).

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

55143451000 is a wasteful number, since it uses less digits than its factorization.

55143451000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 55143451000 its reverse (15434155), we get a palindrome (55158885155).

The spelling of 55143451000 in words is "fifty-five billion, one hundred forty-three million, four hundred fifty-one thousand".