82205057 has 8 divisors (see below), whose sum is σ = 89830560. Its totient is φ = 74604960.

The previous prime is 82205051. The next prime is 82205119. The reversal of 82205057 is 75050228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82205057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82205051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (11228820).

Almost surely, 2^82205057 is an apocalyptic number.

It is an amenable number.

82205057 is a deficient number, since it is larger than the sum of its proper divisors (7625503).

82205057 is a wasteful number, since it uses less digits than its factorization.

82205057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12703.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 82205057 is about 9066.7004472410. The cubic root of 82205057 is about 434.8099879163.

The spelling of 82205057 in words is "eighty-two million, two hundred five thousand, fifty-seven".