85240001 has 16 divisors (see below), whose sum is σ = 110896128. Its totient is φ = 63531600.

The previous prime is 85239977. The next prime is 85240003. The reversal of 85240001 is 10004258.

It is not a de Polignac number, because 85240001 - 2⁶ = 85239937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85240003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22295 + ... + 25836.

It is an arithmetic number, because the mean of its divisors is an integer number (6931008).

Almost surely, 2^85240001 is an apocalyptic number.

It is an amenable number.

85240001 is a deficient number, since it is larger than the sum of its proper divisors (25656127).

85240001 is a wasteful number, since it uses less digits than its factorization.

85240001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48172.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 85240001 is about 9232.5511642232. The cubic root of 85240001 is about 440.0963993329.

Adding to 85240001 its reverse (10004258), we get a palindrome (95244259).

The spelling of 85240001 in words is "eighty-five million, two hundred forty thousand, one".