50640898 has 16 divisors (see below), whose sum is σ = 94705344. Its totient is φ = 19730160.

The previous prime is 50640893. The next prime is 50640937. The reversal of 50640898 is 89804605.

It is a self number, because there is not a number n which added to its sum of digits gives 50640898.

It is not an unprimeable number, because it can be changed into a prime (50640893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164265 + ... + 164572.

It is an arithmetic number, because the mean of its divisors is an integer number (5919084).

Almost surely, 2^50640898 is an apocalyptic number.

50640898 is a deficient number, since it is larger than the sum of its proper divisors (44064446).

50640898 is a wasteful number, since it uses less digits than its factorization.

50640898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328857.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 50640898 is about 7116.2418452439. The cubic root of 50640898 is about 369.9705308889.

The spelling of 50640898 in words is "fifty million, six hundred forty thousand, eight hundred ninety-eight".