50447772 has 144 divisors (see below), whose sum is σ = 145297152. Its totient is φ = 15240960.

The previous prime is 50447759. The next prime is 50447797. The reversal of 50447772 is 27774405.

It is a happy number.

It is a super-3 number, since 3×50447772³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 710497 + ... + 710567.

It is an arithmetic number, because the mean of its divisors is an integer number (1009008).

Almost surely, 2^50447772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50447772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72648576).

50447772 is an abundant number, since it is smaller than the sum of its proper divisors (94849380).

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

50447772 is a wasteful number, since it uses less digits than its factorization.

50447772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 50447772 is about 7102.6595019049. The cubic root of 50447772 is about 369.4996206575.

The spelling of 50447772 in words is "fifty million, four hundred forty-seven thousand, seven hundred seventy-two".