85325031 has 48 divisors (see below), whose sum is σ = 139276800. Its totient is φ = 49896000.

The previous prime is 85325021. The next prime is 85325039. The reversal of 85325031 is 13052358.

It is not a de Polignac number, because 85325031 - 2¹⁰ = 85324007 is a prime.

It is a super-2 number, since 2×85325031² = 14560721830301922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85324986 and 85325004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85325039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 428670 + ... + 428868.

It is an arithmetic number, because the mean of its divisors is an integer number (2901600).

Almost surely, 2^85325031 is an apocalyptic number.

85325031 is a deficient number, since it is larger than the sum of its proper divisors (53951769).

85325031 is a wasteful number, since it uses less digits than its factorization.

85325031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 85325031 is about 9237.1549191296. The cubic root of 85325031 is about 440.2426880871.

Adding to 85325031 its reverse (13052358), we get a palindrome (98377389).

The spelling of 85325031 in words is "eighty-five million, three hundred twenty-five thousand, thirty-one".