50512639 has 8 divisors (see below), whose sum is σ = 51940800. Its totient is φ = 49099296.

The previous prime is 50512633. The next prime is 50512643. The reversal of 50512639 is 93621505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50512639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50512639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50512633) 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, 3397 + ... + 10609.

It is an arithmetic number, because the mean of its divisors is an integer number (6492600).

Almost surely, 2^50512639 is an apocalyptic number.

50512639 is a deficient number, since it is larger than the sum of its proper divisors (1428161).

50512639 is a wasteful number, since it uses less digits than its factorization.

50512639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7409.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 50512639 is about 7107.2244230783. The cubic root of 50512639 is about 369.6579234279.

The spelling of 50512639 in words is "fifty million, five hundred twelve thousand, six hundred thirty-nine".