650378530 has 8 divisors (see below), whose sum is σ = 1170681372. Its totient is φ = 260151408.

The previous prime is 650378473. The next prime is 650378539. The reversal of 650378530 is 35873056.

It can be written as a sum of positive squares in 2 ways, for example, as 522168201 + 128210329 = 22851^2 + 11323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 650378530.

It is not an unprimeable number, because it can be changed into a prime (650378539) 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, 32518917 + ... + 32518936.

Almost surely, 2^650378530 is an apocalyptic number.

650378530 is a deficient number, since it is larger than the sum of its proper divisors (520302842).

650378530 is a wasteful number, since it uses less digits than its factorization.

650378530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65037860.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 650378530 is about 25502.5200715537. The cubic root of 650378530 is about 866.4072252683.

The spelling of 650378530 in words is "six hundred fifty million, three hundred seventy-eight thousand, five hundred thirty".