82106554 has 4 divisors (see below), whose sum is σ = 123159834. Its totient is φ = 41053276.

The previous prime is 82106537. The next prime is 82106567. The reversal of 82106554 is 45560128.

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., 65173329 + 16933225 = 8073^2 + 4115^2 .

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, 20526637 + ... + 20526640.

Almost surely, 2^82106554 is an apocalyptic number.

82106554 is a deficient number, since it is larger than the sum of its proper divisors (41053280).

82106554 is a wasteful number, since it uses less digits than its factorization.

82106554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41053279.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 82106554 is about 9061.2666884934. The cubic root of 82106554 is about 434.6362467524.

The spelling of 82106554 in words is "eighty-two million, one hundred six thousand, five hundred fifty-four".