650220715 has 4 divisors (see below), whose sum is σ = 780264864. Its totient is φ = 520176568.

The previous prime is 650220713. The next prime is 650220719. The reversal of 650220715 is 517022056.

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 650220715 - 2¹ = 650220713 is a prime.

It is a super-2 number, since 2×650220715² = 845573956430222450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650220713) 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, 65022067 + ... + 65022076.

It is an arithmetic number, because the mean of its divisors is an integer number (195066216).

Almost surely, 2^650220715 is an apocalyptic number.

650220715 is a deficient number, since it is larger than the sum of its proper divisors (130044149).

650220715 is a wasteful number, since it uses less digits than its factorization.

650220715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130044148.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 650220715 is about 25499.4257778484. The cubic root of 650220715 is about 866.3371414064.

The spelling of 650220715 in words is "six hundred fifty million, two hundred twenty thousand, seven hundred fifteen".