50649378 has 32 divisors (see below), whose sum is σ = 109971456. Its totient is φ = 15458688.

The previous prime is 50649377. The next prime is 50649433. The reversal of 50649378 is 87394605.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (50649373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7350 + ... + 12462.

It is an arithmetic number, because the mean of its divisors is an integer number (3436608).

Almost surely, 2^50649378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50649378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54985728).

50649378 is an abundant number, since it is smaller than the sum of its proper divisors (59322078).

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

50649378 is a wasteful number, since it uses less digits than its factorization.

50649378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 50649378 is about 7116.8376404131. The cubic root of 50649378 is about 369.9911807004.

The spelling of 50649378 in words is "fifty million, six hundred forty-nine thousand, three hundred seventy-eight".