50916640 has 24 divisors (see below), whose sum is σ = 120290940. Its totient is φ = 20366592.

The previous prime is 50916631. The next prime is 50916643. The reversal of 50916640 is 4661905.

It can be written as a sum of positive squares in 2 ways, for example, as 49505296 + 1411344 = 7036^2 + 1188^2 .

It is not an unprimeable number, because it can be changed into a prime (50916643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158955 + ... + 159274.

Almost surely, 2^50916640 is an apocalyptic number.

It is an amenable number.

50916640 is an abundant number, since it is smaller than the sum of its proper divisors (69374300).

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

50916640 is a wasteful number, since it uses less digits than its factorization.

50916640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318244 (or 318236 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 50916640 is about 7135.5896743016. The cubic root of 50916640 is about 370.6408179158.

The spelling of 50916640 in words is "fifty million, nine hundred sixteen thousand, six hundred forty".