85304057 has 2 divisors, whose sum is σ = 85304058. Its totient is φ = 85304056.

The previous prime is 85304041. The next prime is 85304099. The reversal of 85304057 is 75040358.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85303696 + 361 = 9236^2 + 19^2 .

It is a cyclic number.

It is not a de Polignac number, because 85304057 - 2⁴ = 85304041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85304027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42652028 + 42652029.

It is an arithmetic number, because the mean of its divisors is an integer number (42652029).

Almost surely, 2^85304057 is an apocalyptic number.

It is an amenable number.

85304057 is a deficient number, since it is larger than the sum of its proper divisors (1).

85304057 is an equidigital number, since it uses as much as digits as its factorization.

85304057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 85304057 is about 9236.0195430716. The cubic root of 85304057 is about 440.2066126756.

The spelling of 85304057 in words is "eighty-five million, three hundred four thousand, fifty-seven".