6897499025 has 12 divisors (see below), whose sum is σ = 8554856844. Its totient is φ = 5516736000.

The previous prime is 6897499019. The next prime is 6897499031. The reversal of 6897499025 is 5209947986.

It is an interprime number because it is at equal distance from previous prime (6897499019) and next prime (6897499031).

It can be written as a sum of positive squares in 6 ways, for example, as 155775361 + 6741723664 = 12481^2 + 82108^2 .

It is not a de Polignac number, because 6897499025 - 2⁴ = 6897499009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88805 + ... + 147245.

It is an arithmetic number, because the mean of its divisors is an integer number (712904737).

Almost surely, 2^6897499025 is an apocalyptic number.

It is an amenable number.

6897499025 is a deficient number, since it is larger than the sum of its proper divisors (1657357819).

6897499025 is a wasteful number, since it uses less digits than its factorization.

6897499025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63172 (or 63167 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The square root of 6897499025 is about 83051.1831643596. The cubic root of 6897499025 is about 1903.5482195858.

The spelling of 6897499025 in words is "six billion, eight hundred ninety-seven million, four hundred ninety-nine thousand, twenty-five".