50918688 has 72 divisors (see below), whose sum is σ = 151115328. Its totient is φ = 16232832.

The previous prime is 50918683. The next prime is 50918717. The reversal of 50918688 is 88681905.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (50918683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2781 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (2098824).

Almost surely, 2^50918688 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 50918688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75557664).

50918688 is an abundant number, since it is smaller than the sum of its proper divisors (100196640).

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

50918688 is a wasteful number, since it uses less digits than its factorization.

50918688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726 (or 7715 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 50918688 is about 7135.7331788682. The cubic root of 50918688 is about 370.6457872291.

The spelling of 50918688 in words is "fifty million, nine hundred eighteen thousand, six hundred eighty-eight".