85951225 has 6 divisors (see below), whose sum is σ = 106579550. Its totient is φ = 68760960.

The previous prime is 85951223. The next prime is 85951237. The reversal of 85951225 is 52215958.

It can be written as a sum of positive squares in 3 ways, for example, as 36864 + 85914361 = 192^2 + 9269^2 .

It is not a de Polignac number, because 85951225 - 2¹ = 85951223 is a prime.

It is a super-2 number, since 2×85951225² = 14775226158001250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85951223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1719000 + ... + 1719049.

Almost surely, 2^85951225 is an apocalyptic number.

It is an amenable number.

85951225 is a deficient number, since it is larger than the sum of its proper divisors (20628325).

85951225 is a wasteful number, since it uses less digits than its factorization.

85951225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438059 (or 3438054 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The square root of 85951225 is about 9270.9883507639. The cubic root of 85951225 is about 441.3170335287.

The spelling of 85951225 in words is "eighty-five million, nine hundred fifty-one thousand, two hundred twenty-five".