653013012 has 12 divisors (see below), whose sum is σ = 1523697056. Its totient is φ = 217671000.

The previous prime is 653013001. The next prime is 653013017. The reversal of 653013012 is 210310356.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 653013012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653013017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27208864 + ... + 27208887.

Almost surely, 2^653013012 is an apocalyptic number.

It is an amenable number.

653013012 is an abundant number, since it is smaller than the sum of its proper divisors (870684044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653013012 is a wasteful number, since it uses less digits than its factorization.

653013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54417758 (or 54417756 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 653013012 is about 25554.1192765472. The cubic root of 653013012 is about 867.5754983610.

Adding to 653013012 its reverse (210310356), we get a palindrome (863323368).

The spelling of 653013012 in words is "six hundred fifty-three million, thirteen thousand, twelve".