6985573525 has 36 divisors (see below), whose sum is σ = 10085180772. Its totient is φ = 4785903360.

The previous prime is 6985573523. The next prime is 6985573541. The reversal of 6985573525 is 5253755896.

It can be written as a sum of positive squares in 6 ways, for example, as 59505796 + 6926067729 = 7714^2 + 83223^2 .

It is not a de Polignac number, because 6985573525 - 2¹ = 6985573523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985573523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2145799 + ... + 2149051.

Almost surely, 2^6985573525 is an apocalyptic number.

It is an amenable number.

6985573525 is a deficient number, since it is larger than the sum of its proper divisors (3099607247).

6985573525 is a wasteful number, since it uses less digits than its factorization.

6985573525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5018 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 55.

The square root of 6985573525 is about 83579.7435088192. The cubic root of 6985573525 is about 1911.6161430595.

It can be divided in two parts, 69855 and 73525, that added together give a triangular number (143380 = T₅₃₅).

The spelling of 6985573525 in words is "six billion, nine hundred eighty-five million, five hundred seventy-three thousand, five hundred twenty-five".