82510906 has 4 divisors (see below), whose sum is σ = 123766362. Its totient is φ = 41255452.

The previous prime is 82510891. The next prime is 82510919. The reversal of 82510906 is 60901528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69872881 + 12638025 = 8359^2 + 3555^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20627725 + ... + 20627728.

Almost surely, 2^82510906 is an apocalyptic number.

82510906 is a deficient number, since it is larger than the sum of its proper divisors (41255456).

82510906 is a wasteful number, since it uses less digits than its factorization.

82510906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41255455.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 82510906 is about 9083.5513979941. The cubic root of 82510906 is about 435.3485663489.

The spelling of 82510906 in words is "eighty-two million, five hundred ten thousand, nine hundred six".