75520355052 has 12 divisors (see below), whose sum is σ = 176214161816. Its totient is φ = 25173451680.

The previous prime is 75520355041. The next prime is 75520355081. The reversal of 75520355052 is 25055302557.

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 75520355052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3146681449 + ... + 3146681472.

Almost surely, 2^75520355052 is an apocalyptic number.

It is an amenable number.

75520355052 is an abundant number, since it is smaller than the sum of its proper divisors (100693806764).

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

75520355052 is a wasteful number, since it uses less digits than its factorization.

75520355052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293362928 (or 6293362926 counting only the distinct ones).

The product of its (nonzero) digits is 262500, while the sum is 39.

The spelling of 75520355052 in words is "seventy-five billion, five hundred twenty million, three hundred fifty-five thousand, fifty-two".