82528945 has 16 divisors (see below), whose sum is σ = 105546240. Its totient is φ = 61804864.

The previous prime is 82528891. The next prime is 82528949. The reversal of 82528945 is 54982528.

It is a de Polignac number, because none of the positive numbers 2^k-82528945 is a prime.

It is a super-2 number, since 2×82528945² = 13622053525626050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82528949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2230 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (6596640).

Almost surely, 2^82528945 is an apocalyptic number.

It is an amenable number.

82528945 is a deficient number, since it is larger than the sum of its proper divisors (23017295).

82528945 is a wasteful number, since it uses less digits than its factorization.

82528945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15344.

The product of its digits is 230400, while the sum is 43.

The square root of 82528945 is about 9084.5442923682. The cubic root of 82528945 is about 435.3802901574.

The spelling of 82528945 in words is "eighty-two million, five hundred twenty-eight thousand, nine hundred forty-five".