82545550 has 12 divisors (see below), whose sum is σ = 153534816. Its totient is φ = 33018200.

The previous prime is 82545503. The next prime is 82545559. The reversal of 82545550 is 5554528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82545559) 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, 825406 + ... + 825505.

It is an arithmetic number, because the mean of its divisors is an integer number (12794568).

Almost surely, 2^82545550 is an apocalyptic number.

82545550 is a deficient number, since it is larger than the sum of its proper divisors (70989266).

82545550 is a wasteful number, since it uses less digits than its factorization.

82545550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650923 (or 1650918 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 82545550 is about 9085.4581612597. The cubic root of 82545550 is about 435.4094880140.

The spelling of 82545550 in words is "eighty-two million, five hundred forty-five thousand, five hundred fifty".