85433057 has 2 divisors, whose sum is σ = 85433058. Its totient is φ = 85433056.

The previous prime is 85432967. The next prime is 85433069. The reversal of 85433057 is 75033458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 6507601 = 8884^2 + 2551^2 .

It is a cyclic number.

It is not a de Polignac number, because 85433057 - 2¹⁴ = 85416673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85433077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42716528 + 42716529.

It is an arithmetic number, because the mean of its divisors is an integer number (42716529).

Almost surely, 2^85433057 is an apocalyptic number.

It is an amenable number.

85433057 is a deficient number, since it is larger than the sum of its proper divisors (1).

85433057 is an equidigital number, since it uses as much as digits as its factorization.

85433057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 85433057 is about 9243.0004327599. Note that the first 3 decimals coincide. The cubic root of 85433057 is about 440.4283999078.

The spelling of 85433057 in words is "eighty-five million, four hundred thirty-three thousand, fifty-seven".