663005252 has 36 divisors (see below), whose sum is σ = 1435867776. Its totient is φ = 262285920.

The previous prime is 663005251. The next prime is 663005263. The reversal of 663005252 is 252500366.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663005251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65324 + ... + 74787.

It is an arithmetic number, because the mean of its divisors is an integer number (39885216).

Almost surely, 2^663005252 is an apocalyptic number.

It is an amenable number.

663005252 is an abundant number, since it is smaller than the sum of its proper divisors (772862524).

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

663005252 is a wasteful number, since it uses less digits than its factorization.

663005252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140148 (or 140133 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 663005252 is about 25748.8883643547. Note that the first 3 decimals coincide. The cubic root of 663005252 is about 871.9782578116.

The spelling of 663005252 in words is "six hundred sixty-three million, five thousand, two hundred fifty-two".