82481385525 has 48 divisors (see below), whose sum is σ = 170018784768. Its totient is φ = 34277976000.

The previous prime is 82481385523. The next prime is 82481385529. The reversal of 82481385525 is 52558318428.

It is a happy number.

It is not a de Polignac number, because 82481385525 - 2¹ = 82481385523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82481385523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7135471 + ... + 7147020.

It is an arithmetic number, because the mean of its divisors is an integer number (3542058016).

Almost surely, 2^82481385525 is an apocalyptic number.

It is an amenable number.

82481385525 is an abundant number, since it is smaller than the sum of its proper divisors (87537399243).

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

82481385525 is a wasteful number, since it uses less digits than its factorization.

82481385525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282522 (or 14282517 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 51.

The spelling of 82481385525 in words is "eighty-two billion, four hundred eighty-one million, three hundred eighty-five thousand, five hundred twenty-five".