50651689 has 9 divisors (see below), whose sum is σ = 55761181. Its totient is φ = 45975820.

The previous prime is 50651683. The next prime is 50651717. The reversal of 50651689 is 98615605.

The square root of 50651689 is 7117.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 50651689 - 2¹⁵ = 50618921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50651683) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 77964 + ... + 78610.

Almost surely, 2^50651689 is an apocalyptic number.

50651689 is the 7117-th square number.

50651689 is the 3559-th centered octagonal number.

It is an amenable number.

50651689 is a deficient number, since it is larger than the sum of its proper divisors (5109492).

50651689 is an frugal number, since it uses more digits than its factorization.

50651689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The cubic root of 50651689 is about 369.9968078614.

It can be divided in two parts, 506516 and 89, that added together give a palindrome (506605).

The spelling of 50651689 in words is "fifty million, six hundred fifty-one thousand, six hundred eighty-nine".