82606556 has 6 divisors (see below), whose sum is σ = 144561480. Its totient is φ = 41303276.

The previous prime is 82606499. The next prime is 82606567. The reversal of 82606556 is 65560628.

It is a happy number.

It is a super-2 number, since 2×82606556² = 13647686188362272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10325816 + ... + 10325823.

It is an arithmetic number, because the mean of its divisors is an integer number (24093580).

Almost surely, 2^82606556 is an apocalyptic number.

It is an amenable number.

82606556 is a deficient number, since it is larger than the sum of its proper divisors (61954924).

82606556 is a wasteful number, since it uses less digits than its factorization.

82606556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20651643 (or 20651641 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 82606556 is about 9088.8148842410. The cubic root of 82606556 is about 435.5167259780.

The spelling of 82606556 in words is "eighty-two million, six hundred six thousand, five hundred fifty-six".