650516623 has 4 divisors (see below), whose sum is σ = 684754360. Its totient is φ = 616278888.

The previous prime is 650516621. The next prime is 650516683. The reversal of 650516623 is 326615056.

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

It is a cyclic number.

It is not a de Polignac number, because 650516623 - 2¹ = 650516621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650516621) 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, 17118840 + ... + 17118877.

It is an arithmetic number, because the mean of its divisors is an integer number (171188590).

Almost surely, 2^650516623 is an apocalyptic number.

650516623 is a deficient number, since it is larger than the sum of its proper divisors (34237737).

650516623 is a wasteful number, since it uses less digits than its factorization.

650516623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34237736.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 650516623 is about 25505.2273661695. The cubic root of 650516623 is about 866.4685415123.

The spelling of 650516623 in words is "six hundred fifty million, five hundred sixteen thousand, six hundred twenty-three".