80525728052 has 48 divisors (see below), whose sum is σ = 175736397312. Its totient is φ = 31365821280.

The previous prime is 80525728037. The next prime is 80525728067. The reversal of 80525728052 is 25082752508.

It is an interprime number because it is at equal distance from previous prime (80525728037) and next prime (80525728067).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 80525727994 and 80525728012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288643 + ... + 1349685.

It is an arithmetic number, because the mean of its divisors is an integer number (3661174944).

Almost surely, 2^80525728052 is an apocalyptic number.

It is an amenable number.

80525728052 is an abundant number, since it is smaller than the sum of its proper divisors (95210669260).

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

80525728052 is a wasteful number, since it uses less digits than its factorization.

80525728052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65348 (or 65346 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 80525728052 in words is "eighty billion, five hundred twenty-five million, seven hundred twenty-eight thousand, fifty-two".