55557454500 has 576 divisors, whose sum is σ = 194016775680. Its totient is φ = 13869662400.

The previous prime is 55557454499. The next prime is 55557454501. The reversal of 55557454500 is 545475555.

55557454500 is a `hidden beast` number, since 5 + 5 + 557 + 45 + 4 + 50 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (55557454499) and next prime (55557454501).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (55557454501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1182073477 + ... + 1182073523.

It is an arithmetic number, because the mean of its divisors is an integer number (336834680).

Almost surely, 2^55557454500 is an apocalyptic number.

55557454500 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 55557454500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97008387840).

55557454500 is an abundant number, since it is smaller than the sum of its proper divisors (138459321180).

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

55557454500 is an equidigital number, since it uses as much as digits as its factorization.

55557454500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1750000, while the sum is 45.

The spelling of 55557454500 in words is "fifty-five billion, five hundred fifty-seven million, four hundred fifty-four thousand, five hundred".