85242625 has 16 divisors (see below), whose sum is σ = 114568272. Its totient is φ = 62947200.

The previous prime is 85242601. The next prime is 85242637. The reversal of 85242625 is 52624258.

85242625 = 6528² + 6529².

It can be written as a sum of positive squares in 8 ways, for example, as 14531344 + 70711281 = 3812^2 + 8409^2 .

It is not a de Polignac number, because 85242625 - 2⁵ = 85242593 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24604 + ... + 27853.

It is an arithmetic number, because the mean of its divisors is an integer number (7160517).

Almost surely, 2^85242625 is an apocalyptic number.

85242625 is the 6529-th centered square number.

It is an amenable number.

85242625 is a deficient number, since it is larger than the sum of its proper divisors (29325647).

85242625 is a wasteful number, since it uses less digits than its factorization.

85242625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52485 (or 52475 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 85242625 is about 9232.6932690304. The cubic root of 85242625 is about 440.1009152139.

The spelling of 85242625 in words is "eighty-five million, two hundred forty-two thousand, six hundred twenty-five".