80525505050 has 12 divisors (see below), whose sum is σ = 149777439486. Its totient is φ = 32210202000.

The previous prime is 80525504971. The next prime is 80525505059. The reversal of 80525505050 is 5050552508.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 77172284401 + 3353220649 = 277799^2 + 57907^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80525505050.

It is not an unprimeable number, because it can be changed into a prime (80525505059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 805255001 + ... + 805255100.

Almost surely, 2^80525505050 is an apocalyptic number.

80525505050 is a deficient number, since it is larger than the sum of its proper divisors (69251934436).

80525505050 is a wasteful number, since it uses less digits than its factorization.

80525505050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610510113 (or 1610510108 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 80525505050 in words is "eighty billion, five hundred twenty-five million, five hundred five thousand, fifty".