653523252 has 12 divisors (see below), whose sum is σ = 1524887616. Its totient is φ = 217841080.

The previous prime is 653523251. The next prime is 653523371. The reversal of 653523252 is 252325356.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653523251) 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, 27230124 + ... + 27230147.

It is an arithmetic number, because the mean of its divisors is an integer number (127073968).

Almost surely, 2^653523252 is an apocalyptic number.

It is an amenable number.

653523252 is an abundant number, since it is smaller than the sum of its proper divisors (871364364).

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

653523252 is a wasteful number, since it uses less digits than its factorization.

653523252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54460278 (or 54460276 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

The square root of 653523252 is about 25564.1008447393. The cubic root of 653523252 is about 867.8014032401.

The spelling of 653523252 in words is "six hundred fifty-three million, five hundred twenty-three thousand, two hundred fifty-two".