75513513252 has 12 divisors (see below), whose sum is σ = 176198197616. Its totient is φ = 25171171080.

The previous prime is 75513513223. The next prime is 75513513263. The reversal of 75513513252 is 25231531557.

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 75513513252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3146396374 + ... + 3146396397.

Almost surely, 2^75513513252 is an apocalyptic number.

It is an amenable number.

75513513252 is an abundant number, since it is smaller than the sum of its proper divisors (100684684364).

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

75513513252 is a wasteful number, since it uses less digits than its factorization.

75513513252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6292792778 (or 6292792776 counting only the distinct ones).

The product of its digits is 157500, while the sum is 39.

The spelling of 75513513252 in words is "seventy-five billion, five hundred thirteen million, five hundred thirteen thousand, two hundred fifty-two".