650452431 has 4 divisors (see below), whose sum is σ = 867269912. Its totient is φ = 433634952.

The previous prime is 650452409. The next prime is 650452477. The reversal of 650452431 is 134254056.

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

It is not a de Polignac number, because 650452431 - 2¹⁰ = 650451407 is a prime.

It is a super-2 number, since 2×650452431² = 846176729987619522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650452031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108408736 + ... + 108408741.

It is an arithmetic number, because the mean of its divisors is an integer number (216817478).

Almost surely, 2^650452431 is an apocalyptic number.

650452431 is a deficient number, since it is larger than the sum of its proper divisors (216817481).

650452431 is a wasteful number, since it uses less digits than its factorization.

650452431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216817480.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 650452431 is about 25503.9689264240. The cubic root of 650452431 is about 866.4400399715.

It can be divided in two parts, 65045 and 2431, that added together give a palindrome (67476).

The spelling of 650452431 in words is "six hundred fifty million, four hundred fifty-two thousand, four hundred thirty-one".