6771552125 has 16 divisors (see below), whose sum is σ = 9100968240. Its totient is φ = 5000529600.

The previous prime is 6771552059. The next prime is 6771552127. The reversal of 6771552125 is 5212551776.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5352824569 + 1418727556 = 73163^2 + 37666^2 .

It is not a de Polignac number, because 6771552125 - 2¹⁴ = 6771535741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6771552127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2081930 + ... + 2085179.

It is an arithmetic number, because the mean of its divisors is an integer number (568810515).

Almost surely, 2^6771552125 is an apocalyptic number.

6771552125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6771552125 is a deficient number, since it is larger than the sum of its proper divisors (2329416115).

6771552125 is a wasteful number, since it uses less digits than its factorization.

6771552125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167137 (or 4167127 counting only the distinct ones).

The product of its digits is 147000, while the sum is 41.

The square root of 6771552125 is about 82289.4411513409. The cubic root of 6771552125 is about 1891.8908435141.

The spelling of 6771552125 in words is "six billion, seven hundred seventy-one million, five hundred fifty-two thousand, one hundred twenty-five".