55150050000 has 240 divisors, whose sum is σ = 178769433024. Its totient is φ = 14649600000.

The previous prime is 55150049953. The next prime is 55150050017. The reversal of 55150050000 is 5005155.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50549455 + ... + 50550545.

Almost surely, 2^55150050000 is an apocalyptic number.

55150050000 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 55150050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89384716512).

55150050000 is an abundant number, since it is smaller than the sum of its proper divisors (123619383024).

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

55150050000 is a wasteful number, since it uses less digits than its factorization.

55150050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

Adding to 55150050000 its reverse (5005155), we get a palindrome (55155055155).

The spelling of 55150050000 in words is "fifty-five billion, one hundred fifty million, fifty thousand".