55451471800 has 48 divisors (see below), whose sum is σ = 128985885000. Its totient is φ = 22170057600.

The previous prime is 55451471797. The next prime is 55451471807. The reversal of 55451471800 is 817415455.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55451471807) 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 11 ways as a sum of consecutive naturals, for example, 363451 + ... + 492949.

Almost surely, 2^55451471800 is an apocalyptic number.

55451471800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55451471800 is an abundant number, since it is smaller than the sum of its proper divisors (73534413200).

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

55451471800 is a wasteful number, since it uses less digits than its factorization.

55451471800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131656 (or 131647 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 40.

The spelling of 55451471800 in words is "fifty-five billion, four hundred fifty-one million, four hundred seventy-one thousand, eight hundred".