50978439 has 6 divisors (see below), whose sum is σ = 73635536. Its totient is φ = 33985620.

The previous prime is 50978423. The next prime is 50978467. The reversal of 50978439 is 93487905.

It is not a de Polignac number, because 50978439 - 2⁴ = 50978423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50978394 and 50978403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50908439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2832127 + ... + 2832144.

Almost surely, 2^50978439 is an apocalyptic number.

50978439 is a deficient number, since it is larger than the sum of its proper divisors (22657097).

50978439 is a wasteful number, since it uses less digits than its factorization.

50978439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664277 (or 5664274 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 50978439 is about 7139.9186970161. The cubic root of 50978439 is about 370.7907097863.

The spelling of 50978439 in words is "fifty million, nine hundred seventy-eight thousand, four hundred thirty-nine".