50331640 has 16 divisors (see below), whose sum is σ = 113246280. Its totient is φ = 20132640.

The previous prime is 50331599. The next prime is 50331653. The reversal of 50331640 is 4613305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629106 + ... + 629185.

Almost surely, 2^50331640 is an apocalyptic number.

It is an amenable number.

50331640 is an abundant number, since it is smaller than the sum of its proper divisors (62914640).

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

50331640 is a wasteful number, since it uses less digits than its factorization.

50331640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258302 (or 1258298 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 50331640 is about 7094.4795439835. The cubic root of 50331640 is about 369.2158704369.

Adding to 50331640 its reverse (4613305), we get a palindrome (54944945).

The spelling of 50331640 in words is "fifty million, three hundred thirty-one thousand, six hundred forty".