50640012 has 24 divisors (see below), whose sum is σ = 131289200. Its totient is φ = 16879968.

The previous prime is 50640011. The next prime is 50640049. The reversal of 50640012 is 21004605.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (50640011) 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, 234337 + ... + 234552.

Almost surely, 2^50640012 is an apocalyptic number.

It is an amenable number.

50640012 is an abundant number, since it is smaller than the sum of its proper divisors (80649188).

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

50640012 is a wasteful number, since it uses less digits than its factorization.

50640012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468902 (or 468894 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 50640012 is about 7116.1795930120. The cubic root of 50640012 is about 369.9683732402.

Adding to 50640012 its reverse (21004605), we get a palindrome (71644617).

The spelling of 50640012 in words is "fifty million, six hundred forty thousand, twelve".