6985052555625 has 135 divisors (see below), whose sum is σ = 12752248036099. Its totient is φ = 3683180280000.

The previous prime is 6985052555563. The next prime is 6985052555639. The reversal of 6985052555625 is 5265552505896.

The square root of 6985052555625 is 2642925.

It is a perfect power (a square), and thus also a powerful number.

6985052555625 is a `hidden beast` number, since 6 + 9 + 8 + 5 + 0 + 52 + 5 + 556 + 25 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 6980898495321 + 4154060304 = 2642139^2 + 64452^2 .

It is not a de Polignac number, because 6985052555625 - 2²⁵ = 6985019001193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 25966737991 + ... + 25966738259.

Almost surely, 2^{6985052555625} is an apocalyptic number.

6985052555625 is the 2642925-th square number.

6985052555625 is the 1321463-rd centered octagonal number.

It is an amenable number.

6985052555625 is a deficient number, since it is larger than the sum of its proper divisors (5767195480474).

6985052555625 is an frugal number, since it uses more digits than its factorization.

6985052555625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 162000000, while the sum is 63.

The spelling of 6985052555625 in words is "six trillion, nine hundred eighty-five billion, fifty-two million, five hundred fifty-five thousand, six hundred twenty-five".