650249469 has 6 divisors (see below), whose sum is σ = 939249246. Its totient is φ = 433499640.

The previous prime is 650249449. The next prime is 650249477. The reversal of 650249469 is 964942056.

It can be written as a sum of positive squares in only one way, i.e., 583222500 + 67026969 = 24150^2 + 8187^2 .

It is not a de Polignac number, because 650249469 - 2⁸ = 650249213 is a prime.

It is a super-2 number, since 2×650249469² = 845648743869563922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650249429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36124962 + ... + 36124979.

It is an arithmetic number, because the mean of its divisors is an integer number (156541541).

Almost surely, 2^650249469 is an apocalyptic number.

It is an amenable number.

650249469 is a deficient number, since it is larger than the sum of its proper divisors (288999777).

650249469 is a wasteful number, since it uses less digits than its factorization.

650249469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72249947 (or 72249944 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 650249469 is about 25499.9895882332. The cubic root of 650249469 is about 866.3499115783.

The spelling of 650249469 in words is "six hundred fifty million, two hundred forty-nine thousand, four hundred sixty-nine".