7737841225 has 27 divisors (see below), whose sum is σ = 9768694239. Its totient is φ = 6080140800.

The previous prime is 7737841187. The next prime is 7737841229. The reversal of 7737841225 is 5221487377.

The square root of 7737841225 is 87965.

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

It can be written as a sum of positive squares in 13 ways, for example, as 2432758329 + 5305082896 = 49323^2 + 72836^2 .

It is not a de Polignac number, because 7737841225 - 2⁹ = 7737840713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7737841229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 32107105 + ... + 32107345.

Almost surely, 2^7737841225 is an apocalyptic number.

7737841225 is the 87965-th square number.

7737841225 is the 43983-rd centered octagonal number.

It is an amenable number.

7737841225 is a deficient number, since it is larger than the sum of its proper divisors (2030853014).

7737841225 is an frugal number, since it uses more digits than its factorization.

7737841225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 319 counting only the distinct ones).

The product of its digits is 658560, while the sum is 46.

The cubic root of 7737841225 is about 1977.9103574878.

The spelling of 7737841225 in words is "seven billion, seven hundred thirty-seven million, eight hundred forty-one thousand, two hundred twenty-five".