6777725 has 6 divisors (see below), whose sum is σ = 8404410. Its totient is φ = 5422160.

The previous prime is 6777707. The next prime is 6777733. The reversal of 6777725 is 5277776.

6777725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2116 + 6775609 = 46^2 + 2603^2 .

It is not a de Polignac number, because 6777725 - 2⁸ = 6777469 is a prime.

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, 135530 + ... + 135579.

It is an arithmetic number, because the mean of its divisors is an integer number (1400735).

Almost surely, 2^6777725 is an apocalyptic number.

It is an amenable number.

6777725 is a deficient number, since it is larger than the sum of its proper divisors (1626685).

6777725 is a wasteful number, since it uses less digits than its factorization.

6777725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271119 (or 271114 counting only the distinct ones).

The product of its digits is 144060, while the sum is 41.

The square root of 6777725 is about 2603.4064223628. The cubic root of 6777725 is about 189.2465544786.

The spelling of 6777725 in words is "six million, seven hundred seventy-seven thousand, seven hundred twenty-five".