649053507 has 8 divisors (see below), whose sum is σ = 865531584. Its totient is φ = 432638888.

The previous prime is 649053499. The next prime is 649053533. The reversal of 649053507 is 705350946.

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

It is a cyclic number.

It is not a de Polignac number, because 649053507 - 2³ = 649053499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649053007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18868 + ... + 40670.

It is an arithmetic number, because the mean of its divisors is an integer number (108191448).

Almost surely, 2^649053507 is an apocalyptic number.

649053507 is a deficient number, since it is larger than the sum of its proper divisors (216478077).

649053507 is a wasteful number, since it uses less digits than its factorization.

649053507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31729.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 649053507 is about 25476.5285508053. The cubic root of 649053507 is about 865.8184450689.

The spelling of 649053507 in words is "six hundred forty-nine million, fifty-three thousand, five hundred seven".