985258525 has 6 divisors (see below), whose sum is σ = 1221720602. Its totient is φ = 788206800.

The previous prime is 985258513. The next prime is 985258543. The reversal of 985258525 is 525852589.

It can be written as a sum of positive squares in 3 ways, for example, as 92563641 + 892694884 = 9621^2 + 29878^2 .

It is not a de Polignac number, because 985258525 - 2⁵ = 985258493 is a prime.

It is a super-2 number, since 2×985258525² = 1941468722170351250, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19705146 + ... + 19705195.

Almost surely, 2^985258525 is an apocalyptic number.

It is an amenable number.

985258525 is a deficient number, since it is larger than the sum of its proper divisors (236462077).

985258525 is a wasteful number, since it uses less digits than its factorization.

985258525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39410351 (or 39410346 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 49.

The square root of 985258525 is about 31388.8280284562. The cubic root of 985258525 is about 995.0618296132.

The spelling of 985258525 in words is "nine hundred eighty-five million, two hundred fifty-eight thousand, five hundred twenty-five".