7755891125 has 12 divisors (see below), whose sum is σ = 9680581092. Its totient is φ = 6203925200.

The previous prime is 7755891119. The next prime is 7755891127. The reversal of 7755891125 is 5211985577.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 5420198884 + 2335692241 = 73622^2 + 48329^2 .

It is not a de Polignac number, because 7755891125 - 2¹⁰ = 7755890101 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 (7755891127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 980687 + ... + 988563.

It is an arithmetic number, because the mean of its divisors is an integer number (806715091).

Almost surely, 2^7755891125 is an apocalyptic number.

It is an amenable number.

7755891125 is a deficient number, since it is larger than the sum of its proper divisors (1924689967).

7755891125 is an frugal number, since it uses more digits than its factorization.

7755891125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15769 (or 7882 counting only the distinct ones).

The product of its digits is 882000, while the sum is 50.

The square root of 7755891125 is about 88067.5372938292. The cubic root of 7755891125 is about 1979.4471065336.

The spelling of 7755891125 in words is "seven billion, seven hundred fifty-five million, eight hundred ninety-one thousand, one hundred twenty-five".