50055000 has 160 divisors (see below), whose sum is σ = 161948160. Its totient is φ = 12880000.

The previous prime is 50054999. The next prime is 50055037. The reversal of 50055000 is 55005.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 704965 + ... + 705035.

It is an arithmetic number, because the mean of its divisors is an integer number (1012176).

Almost surely, 2^50055000 is an apocalyptic number.

50055000 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 50055000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80974080).

50055000 is an abundant number, since it is smaller than the sum of its proper divisors (111893160).

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

50055000 is a wasteful number, since it uses less digits than its factorization.

50055000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 15.

The square root of 50055000 is about 7074.9558302508. The cubic root of 50055000 is about 368.5381815195.

Adding to 50055000 its sum of digits (15), we get a triangular number (50055015 = T₁₀₀₀₅).

The spelling of 50055000 in words is "fifty million, fifty-five thousand".