649907325 has 36 divisors (see below), whose sum is σ = 1178823360. Its totient is φ = 342220320.

The previous prime is 649907317. The next prime is 649907327. The reversal of 649907325 is 523709946.

It is a happy number.

It is not a de Polignac number, because 649907325 - 2³ = 649907317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649907327) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 507 + ... + 36056.

Almost surely, 2^649907325 is an apocalyptic number.

It is an amenable number.

649907325 is a deficient number, since it is larger than the sum of its proper divisors (528916035).

649907325 is a wasteful number, since it uses less digits than its factorization.

649907325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36658 (or 36650 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 649907325 is about 25493.2799968933. The cubic root of 649907325 is about 866.1979348154.

The spelling of 649907325 in words is "six hundred forty-nine million, nine hundred seven thousand, three hundred twenty-five".