55475563000 has 512 divisors, whose sum is σ = 161676103680. Its totient is φ = 17529600000.

The previous prime is 55475562979. The next prime is 55475563007. The reversal of 55475563000 is 36557455.

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 (55475563007) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 332188917 + ... + 332189083.

It is an arithmetic number, because the mean of its divisors is an integer number (315773640).

Almost surely, 2^55475563000 is an apocalyptic number.

55475563000 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 55475563000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80838051840).

55475563000 is an abundant number, since it is smaller than the sum of its proper divisors (106200540680).

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

55475563000 is a wasteful number, since it uses less digits than its factorization.

55475563000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 55475563000 in words is "fifty-five billion, four hundred seventy-five million, five hundred sixty-three thousand".