85525547 has 2 divisors, whose sum is σ = 85525548. Its totient is φ = 85525546.

The previous prime is 85525511. The next prime is 85525619. The reversal of 85525547 is 74552558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85525547 - 2⁸ = 85525291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85525507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42762773 + 42762774.

It is an arithmetic number, because the mean of its divisors is an integer number (42762774).

Almost surely, 2^85525547 is an apocalyptic number.

85525547 is a deficient number, since it is larger than the sum of its proper divisors (1).

85525547 is an equidigital number, since it uses as much as digits as its factorization.

85525547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280000, while the sum is 41.

The square root of 85525547 is about 9248.0023248267. The cubic root of 85525547 is about 440.5872788123.

The spelling of 85525547 in words is "eighty-five million, five hundred twenty-five thousand, five hundred forty-seven".