82613225 has 6 divisors (see below), whose sum is σ = 102440430. Its totient is φ = 66090560.

The previous prime is 82613207. The next prime is 82613239. The reversal of 82613225 is 52231628.

It can be written as a sum of positive squares in 3 ways, for example, as 3829849 + 78783376 = 1957^2 + 8876^2 .

It is not a de Polignac number, because 82613225 - 2¹² = 82609129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1652240 + ... + 1652289.

It is an arithmetic number, because the mean of its divisors is an integer number (17073405).

Almost surely, 2^82613225 is an apocalyptic number.

It is an amenable number.

82613225 is a deficient number, since it is larger than the sum of its proper divisors (19827205).

82613225 is a wasteful number, since it uses less digits than its factorization.

82613225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304539 (or 3304534 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 82613225 is about 9089.1817563519. The cubic root of 82613225 is about 435.5284457212.

The spelling of 82613225 in words is "eighty-two million, six hundred thirteen thousand, two hundred twenty-five".