82001575 has 12 divisors (see below), whose sum is σ = 101899728. Its totient is φ = 65460800.

The previous prime is 82001573. The next prime is 82001581. The reversal of 82001575 is 57510028.

It is not a de Polignac number, because 82001575 - 2¹ = 82001573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82001573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9315 + ... + 15835.

It is an arithmetic number, because the mean of its divisors is an integer number (8491644).

Almost surely, 2^82001575 is an apocalyptic number.

82001575 is a deficient number, since it is larger than the sum of its proper divisors (19898153).

82001575 is a wasteful number, since it uses less digits than its factorization.

82001575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034 (or 7029 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 82001575 is about 9055.4721025466. The cubic root of 82001575 is about 434.4509300868.

The spelling of 82001575 in words is "eighty-two million, one thousand, five hundred seventy-five".