649418425 has 12 divisors (see below), whose sum is σ = 811076560. Its totient is φ = 515794320.

The previous prime is 649418401. The next prime is 649418447. The reversal of 649418425 is 524814946.

It is not a de Polignac number, because 649418425 - 2²³ = 641029817 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 89967 + ... + 96916.

Almost surely, 2^649418425 is an apocalyptic number.

It is an amenable number.

649418425 is a deficient number, since it is larger than the sum of its proper divisors (161658135).

649418425 is a wasteful number, since it uses less digits than its factorization.

649418425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187032 (or 187027 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 649418425 is about 25483.6893914519. The cubic root of 649418425 is about 865.9806779909.

The spelling of 649418425 in words is "six hundred forty-nine million, four hundred eighteen thousand, four hundred twenty-five".