653631512 has 16 divisors (see below), whose sum is σ = 1255451400. Its totient is φ = 318844480.

The previous prime is 653631481. The next prime is 653631547. The reversal of 653631512 is 215136356.

It is a super-2 number, since 2×653631512² = 854468306958812288, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 996062 + ... + 996717.

Almost surely, 2^653631512 is an apocalyptic number.

It is an amenable number.

653631512 is a deficient number, since it is larger than the sum of its proper divisors (601819888).

653631512 is a wasteful number, since it uses less digits than its factorization.

653631512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992826 (or 1992822 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 653631512 is about 25566.2181794649. The cubic root of 653631512 is about 867.8493194096.

Adding to 653631512 its reverse (215136356), we get a palindrome (868767868).

The spelling of 653631512 in words is "six hundred fifty-three million, six hundred thirty-one thousand, five hundred twelve".