50947640 has 32 divisors (see below), whose sum is σ = 121376880. Its totient is φ = 19180032.

The previous prime is 50947613. The next prime is 50947643. The reversal of 50947640 is 4674905.

It is a self number, because there is not a number n which added to its sum of digits gives 50947640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50947643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36782 + ... + 38141.

Almost surely, 2^50947640 is an apocalyptic number.

It is an amenable number.

50947640 is an abundant number, since it is smaller than the sum of its proper divisors (70429240).

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

50947640 is a wasteful number, since it uses less digits than its factorization.

50947640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74951 (or 74947 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 50947640 is about 7137.7615538767. The cubic root of 50947640 is about 370.7160227625.

The spelling of 50947640 in words is "fifty million, nine hundred forty-seven thousand, six hundred forty".