50689747 has 4 divisors (see below), whose sum is σ = 50712376. Its totient is φ = 50667120.

The previous prime is 50689729. The next prime is 50689753. The reversal of 50689747 is 74798605.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50689747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50689697 and 50689706.

It is not an unprimeable number, because it can be changed into a prime (50639747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7533 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (12678094).

Almost surely, 2^50689747 is an apocalyptic number.

50689747 is a deficient number, since it is larger than the sum of its proper divisors (22629).

50689747 is a wasteful number, since it uses less digits than its factorization.

50689747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22628.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 50689747 is about 7119.6732368838. The cubic root of 50689747 is about 370.0894524406.

It can be divided in two parts, 506897 and 47, that added together give a square (506944 = 712²).

The spelling of 50689747 in words is "fifty million, six hundred eighty-nine thousand, seven hundred forty-seven".