649953532 has 12 divisors (see below), whose sum is σ = 1137884440. Its totient is φ = 324843696.

The previous prime is 649953517. The next prime is 649953583. The reversal of 649953532 is 235359946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21843 + ... + 42154.

Almost surely, 2^649953532 is an apocalyptic number.

It is an amenable number.

649953532 is a deficient number, since it is larger than the sum of its proper divisors (487930908).

649953532 is a wasteful number, since it uses less digits than its factorization.

649953532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66540 (or 66538 counting only the distinct ones).

The product of its digits is 874800, while the sum is 46.

The square root of 649953532 is about 25494.1862392193. The cubic root of 649953532 is about 866.2184625932.

It can be divided in two parts, 6499 and 53532, that added together give a triangular number (60031 = T₃₄₆).

The spelling of 649953532 in words is "six hundred forty-nine million, nine hundred fifty-three thousand, five hundred thirty-two".