50786642 has 4 divisors (see below), whose sum is σ = 76179966. Its totient is φ = 25393320.

The previous prime is 50786641. The next prime is 50786647. The reversal of 50786642 is 24668705.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 5480281 = 6731^2 + 2341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50786596 and 50786605.

It is not an unprimeable number, because it can be changed into a prime (50786641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12696659 + ... + 12696662.

Almost surely, 2^50786642 is an apocalyptic number.

50786642 is a deficient number, since it is larger than the sum of its proper divisors (25393324).

50786642 is a wasteful number, since it uses less digits than its factorization.

50786642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25393323.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 50786642 is about 7126.4747245746. The cubic root of 50786642 is about 370.3251147774.

The spelling of 50786642 in words is "fifty million, seven hundred eighty-six thousand, six hundred forty-two".