85502001 has 12 divisors (see below), whose sum is σ = 123447408. Its totient is φ = 52616304.

The previous prime is 85501973. The next prime is 85502023. The reversal of 85502001 is 10020558.

It is not a de Polignac number, because 85502001 - 2⁹ = 85501489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85500001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83815 + ... + 84828.

It is an arithmetic number, because the mean of its divisors is an integer number (10287284).

Almost surely, 2^85502001 is an apocalyptic number.

It is an amenable number.

85502001 is a deficient number, since it is larger than the sum of its proper divisors (37945407).

85502001 is a wasteful number, since it uses less digits than its factorization.

85502001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168672 (or 168659 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 85502001 is about 9246.7292055083. The cubic root of 85502001 is about 440.5468424725.

Adding to 85502001 its reverse (10020558), we get a palindrome (95522559).

The spelling of 85502001 in words is "eighty-five million, five hundred two thousand, one".