50507730 has 144 divisors (see below), whose sum is σ = 164697624. Its totient is φ = 10644480.

The previous prime is 50507729. The next prime is 50507753. The reversal of 50507730 is 3770505.

50507730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22724289 + 27783441 = 4767^2 + 5271^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50507694 and 50507703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56890 + ... + 57770.

Almost surely, 2^50507730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50507730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82348812).

50507730 is an abundant number, since it is smaller than the sum of its proper divisors (114189894).

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

50507730 is a wasteful number, since it uses less digits than its factorization.

50507730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The square root of 50507730 is about 7106.8790618667. The cubic root of 50507730 is about 369.6459481443.

The spelling of 50507730 in words is "fifty million, five hundred seven thousand, seven hundred thirty".