85448507 has 4 divisors (see below), whose sum is σ = 85597176. Its totient is φ = 85299840.

The previous prime is 85448501. The next prime is 85448509. The reversal of 85448507 is 70584458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85448507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85448501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73469 + ... + 74622.

It is an arithmetic number, because the mean of its divisors is an integer number (21399294).

Almost surely, 2^85448507 is an apocalyptic number.

85448507 is a deficient number, since it is larger than the sum of its proper divisors (148669).

85448507 is a wasteful number, since it uses less digits than its factorization.

85448507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148668.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 85448507 is about 9243.8361625464. The cubic root of 85448507 is about 440.4549478228.

The spelling of 85448507 in words is "eighty-five million, four hundred forty-eight thousand, five hundred seven".