650548490 has 16 divisors (see below), whose sum is σ = 1171313352. Its totient is φ = 260146944.

The previous prime is 650548463. The next prime is 650548519. The reversal of 650548490 is 94845056.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 541074121 + 109474369 = 23261^2 + 10463^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42782 + ... + 55958.

Almost surely, 2^650548490 is an apocalyptic number.

650548490 is a deficient number, since it is larger than the sum of its proper divisors (520764862).

650548490 is a wasteful number, since it uses less digits than its factorization.

650548490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18121.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 650548490 is about 25505.8520735928. The cubic root of 650548490 is about 866.4826899092.

The spelling of 650548490 in words is "six hundred fifty million, five hundred forty-eight thousand, four hundred ninety".