55557855000 has 240 divisors, whose sum is σ = 190685523600. Its totient is φ = 14605920000.

The previous prime is 55557854983. The next prime is 55557855007. The reversal of 55557855000 is 55875555.

It is a happy number.

55557855000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55557855007) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3186306 + ... + 3203694.

It is an arithmetic number, because the mean of its divisors is an integer number (794523015).

Almost surely, 2^55557855000 is an apocalyptic number.

55557855000 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 55557855000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95342761800).

55557855000 is an abundant number, since it is smaller than the sum of its proper divisors (135127668600).

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

55557855000 is a wasteful number, since it uses less digits than its factorization.

55557855000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17492 (or 17470 counting only the distinct ones).

The product of its (nonzero) digits is 875000, while the sum is 45.

The spelling of 55557855000 in words is "fifty-five billion, five hundred fifty-seven million, eight hundred fifty-five thousand".