50502144 has 240 divisors, whose sum is σ = 173533536. Its totient is φ = 12902400.

The previous prime is 50502139. The next prime is 50502149. The reversal of 50502144 is 44120505.

It is an interprime number because it is at equal distance from previous prime (50502139) and next prime (50502149).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 50502144.

It is not an unprimeable number, because it can be changed into a prime (50502149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 827874 + ... + 827934.

Almost surely, 2^50502144 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 50502144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86766768).

50502144 is an abundant number, since it is smaller than the sum of its proper divisors (123031392).

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

50502144 is a wasteful number, since it uses less digits than its factorization.

50502144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 50502144 is about 7106.4860514885. The cubic root of 50502144 is about 369.6323204059.

Adding to 50502144 its reverse (44120505), we get a palindrome (94622649).

The spelling of 50502144 in words is "fifty million, five hundred two thousand, one hundred forty-four".