7806606025 has 27 divisors (see below), whose sum is σ = 9945126709. Its totient is φ = 6078824000.

The previous prime is 7806606013. The next prime is 7806606083. The reversal of 7806606025 is 5206066087.

The square root of 7806606025 is 88355.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3285926329 + 4520679696 = 57323^2 + 67236^2 .

It is not a de Polignac number, because 7806606025 - 2⁵ = 7806605993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18112560 + ... + 18112990.

Almost surely, 2^7806606025 is an apocalyptic number.

7806606025 is the 88355-th square number.

7806606025 is the 44178-th centered octagonal number.

It is an amenable number.

7806606025 is a deficient number, since it is larger than the sum of its proper divisors (2138520684).

7806606025 is an frugal number, since it uses more digits than its factorization.

7806606025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The cubic root of 7806606025 is about 1983.7521973101.

The spelling of 7806606025 in words is "seven billion, eight hundred six million, six hundred six thousand, twenty-five".