85007501 has 4 divisors (see below), whose sum is σ = 89481600. Its totient is φ = 80533404.

The previous prime is 85007491. The next prime is 85007557. The reversal of 85007501 is 10570058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85007501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85007561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237021 + ... + 2237058.

It is an arithmetic number, because the mean of its divisors is an integer number (22370400).

Almost surely, 2^85007501 is an apocalyptic number.

It is an amenable number.

85007501 is a deficient number, since it is larger than the sum of its proper divisors (4474099).

85007501 is a wasteful number, since it uses less digits than its factorization.

85007501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474098.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 85007501 is about 9219.9512471596. The cubic root of 85007501 is about 439.6959004116.

Adding to 85007501 its reverse (10570058), we get a palindrome (95577559).

The spelling of 85007501 in words is "eighty-five million, seven thousand, five hundred one".