82251205 has 8 divisors (see below), whose sum is σ = 98750232. Its totient is φ = 65768448.

The previous prime is 82251193. The next prime is 82251223. The reversal of 82251205 is 50215228.

It can be written as a sum of positive squares in 4 ways, for example, as 2934369 + 79316836 = 1713^2 + 8906^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82251205 - 2⁵ = 82251173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82251205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16797 + ... + 21133.

It is an arithmetic number, because the mean of its divisors is an integer number (12343779).

Almost surely, 2^82251205 is an apocalyptic number.

It is an amenable number.

82251205 is a deficient number, since it is larger than the sum of its proper divisors (16499027).

82251205 is a wasteful number, since it uses less digits than its factorization.

82251205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8135.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 82251205 is about 9069.2450071657. The cubic root of 82251205 is about 434.8913367547.

The spelling of 82251205 in words is "eighty-two million, two hundred fifty-one thousand, two hundred five".