50361640 has 64 divisors (see below), whose sum is σ = 130584960. Its totient is φ = 17122560.

The previous prime is 50361637. The next prime is 50361673. The reversal of 50361640 is 4616305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35994 + ... + 37366.

It is an arithmetic number, because the mean of its divisors is an integer number (2040390).

Almost surely, 2^50361640 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 50361640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65292480).

50361640 is an abundant number, since it is smaller than the sum of its proper divisors (80223320).

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

50361640 is a wasteful number, since it uses less digits than its factorization.

50361640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 50361640 is about 7096.5935490205. The cubic root of 50361640 is about 369.2892124814.

Adding to 50361640 its reverse (4616305), we get a palindrome (54977945).

The spelling of 50361640 in words is "fifty million, three hundred sixty-one thousand, six hundred forty".