650742501 has 4 divisors (see below), whose sum is σ = 867656672. Its totient is φ = 433828332.

The previous prime is 650742497. The next prime is 650742511. The reversal of 650742501 is 105247056.

650742501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 650742501 - 2² = 650742497 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 (650742511) 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, 108457081 + ... + 108457086.

It is an arithmetic number, because the mean of its divisors is an integer number (216914168).

Almost surely, 2^650742501 is an apocalyptic number.

It is an amenable number.

650742501 is a deficient number, since it is larger than the sum of its proper divisors (216914171).

650742501 is a wasteful number, since it uses less digits than its factorization.

650742501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216914170.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 650742501 is about 25509.6550545083. The cubic root of 650742501 is about 866.5688174704.

Adding to 650742501 its reverse (105247056), we get a palindrome (755989557).

The spelling of 650742501 in words is "six hundred fifty million, seven hundred forty-two thousand, five hundred one".