57082811 has 8 divisors (see below), whose sum is σ = 59065344. Its totient is φ = 55109160.

The previous prime is 57082799. The next prime is 57082829. The reversal of 57082811 is 11828075.

It is a happy number.

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-57082811 is a prime.

It is a super-3 number, since 3×57082811³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57082841) 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, 12506 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (7383168).

Almost surely, 2^57082811 is an apocalyptic number.

57082811 is a deficient number, since it is larger than the sum of its proper divisors (1982533).

57082811 is a wasteful number, since it uses less digits than its factorization.

57082811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 57082811 is about 7555.3167372388. The cubic root of 57082811 is about 385.0363961769.

The spelling of 57082811 in words is "fifty-seven million, eighty-two thousand, eight hundred eleven".