82251806 has 16 divisors (see below), whose sum is σ = 151849824. Its totient is φ = 32539104.

The previous prime is 82251787. The next prime is 82251881. The reversal of 82251806 is 60815228.

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, 225785 + ... + 226148.

It is an arithmetic number, because the mean of its divisors is an integer number (9490614).

Almost surely, 2^82251806 is an apocalyptic number.

82251806 is a deficient number, since it is larger than the sum of its proper divisors (69598018).

82251806 is a wasteful number, since it uses less digits than its factorization.

82251806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451955.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 82251806 is about 9069.2781410650. The cubic root of 82251806 is about 434.8923959856.

The spelling of 82251806 in words is "eighty-two million, two hundred fifty-one thousand, eight hundred six".