85610025 has 72 divisors (see below), whose sum is σ = 162953856. Its totient is φ = 42873600.

The previous prime is 85609981. The next prime is 85610027. The reversal of 85610025 is 52001658.

It is not a de Polignac number, because 85610025 - 2¹⁵ = 85577257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85610027) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 367309 + ... + 367541.

It is an arithmetic number, because the mean of its divisors is an integer number (2263248).

Almost surely, 2^85610025 is an apocalyptic number.

It is an amenable number.

85610025 is a deficient number, since it is larger than the sum of its proper divisors (77343831).

85610025 is a wasteful number, since it uses less digits than its factorization.

85610025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 85610025 is about 9252.5685622966. The cubic root of 85610025 is about 440.7322946798.

The spelling of 85610025 in words is "eighty-five million, six hundred ten thousand, twenty-five".