43553505252 has 24 divisors (see below), whose sum is σ = 101628219616. Its totient is φ = 14517353088.

The previous prime is 43553505223. The next prime is 43553505271. The reversal of 43553505252 is 25250535534.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43553505252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683163 + ... + 744189.

Almost surely, 2^43553505252 is an apocalyptic number.

It is an amenable number.

43553505252 is an abundant number, since it is smaller than the sum of its proper divisors (58074714364).

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

43553505252 is a wasteful number, since it uses less digits than its factorization.

43553505252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120507 (or 120505 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 39.

The spelling of 43553505252 in words is "forty-three billion, five hundred fifty-three million, five hundred five thousand, two hundred fifty-two".