85812533 has 2 divisors, whose sum is σ = 85812534. Its totient is φ = 85812532.

The previous prime is 85812511. The next prime is 85812541. The reversal of 85812533 is 33521858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85784644 + 27889 = 9262^2 + 167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85812533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85812493 and 85812502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85812833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42906266 + 42906267.

It is an arithmetic number, because the mean of its divisors is an integer number (42906267).

Almost surely, 2^85812533 is an apocalyptic number.

It is an amenable number.

85812533 is a deficient number, since it is larger than the sum of its proper divisors (1).

85812533 is an equidigital number, since it uses as much as digits as its factorization.

85812533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 85812533 is about 9263.5054380078. The cubic root of 85812533 is about 441.0795341287.

The spelling of 85812533 in words is "eighty-five million, eight hundred twelve thousand, five hundred thirty-three".