50402250 has 160 divisors (see below), whose sum is σ = 149497920. Its totient is φ = 12636000.

The previous prime is 50402239. The next prime is 50402257. The reversal of 50402250 is 5220405.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (50402257) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 384685 + ... + 384815.

It is an arithmetic number, because the mean of its divisors is an integer number (934362).

Almost surely, 2^50402250 is an apocalyptic number.

50402250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 50402250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74748960).

50402250 is an abundant number, since it is smaller than the sum of its proper divisors (99095670).

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

50402250 is a wasteful number, since it uses less digits than its factorization.

50402250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 50402250 is about 7099.4542043737. The cubic root of 50402250 is about 369.3884467779.

Adding to 50402250 its reverse (5220405), we get a palindrome (55622655).

The spelling of 50402250 in words is "fifty million, four hundred two thousand, two hundred fifty".