82500069 has 4 divisors (see below), whose sum is σ = 110000096. Its totient is φ = 55000044.

The previous prime is 82500059. The next prime is 82500073. The reversal of 82500069 is 96000528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82500069 - 2⁴ = 82500053 is a prime.

It is a super-2 number, since 2×82500069² = 13612522770009522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82500059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13750009 + ... + 13750014.

It is an arithmetic number, because the mean of its divisors is an integer number (27500024).

Almost surely, 2^82500069 is an apocalyptic number.

It is an amenable number.

82500069 is a deficient number, since it is larger than the sum of its proper divisors (27500027).

82500069 is a wasteful number, since it uses less digits than its factorization.

82500069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27500026.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 82500069 is about 9082.9548606167. The cubic root of 82500069 is about 435.3295059232.

The spelling of 82500069 in words is "eighty-two million, five hundred thousand, sixty-nine".