72755652 has 12 divisors (see below), whose sum is σ = 169763216. Its totient is φ = 24251880.

The previous prime is 72755629. The next prime is 72755659. The reversal of 72755652 is 25655727.

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 72755652.

It is not an unprimeable number, because it can be changed into a prime (72755659) 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 3 ways as a sum of consecutive naturals, for example, 3031474 + ... + 3031497.

Almost surely, 2^72755652 is an apocalyptic number.

It is an amenable number.

72755652 is an abundant number, since it is smaller than the sum of its proper divisors (97007564).

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

72755652 is a wasteful number, since it uses less digits than its factorization.

72755652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062978 (or 6062976 counting only the distinct ones).

The product of its digits is 147000, while the sum is 39.

The square root of 72755652 is about 8529.6923742888. The cubic root of 72755652 is about 417.4670910033.

The spelling of 72755652 in words is "seventy-two million, seven hundred fifty-five thousand, six hundred fifty-two".