7863255625 has 15 divisors (see below), whose sum is σ = 9828695217. Its totient is φ = 6288831000.

The previous prime is 7863255619. The next prime is 7863255641. The reversal of 7863255625 is 5265523687.

The square root of 7863255625 is 88675.

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

It can be written as a sum of positive squares in 2 ways, for example, as 616479241 + 7246776384 = 24829^2 + 85128^2 .

It is not a de Polignac number, because 7863255625 - 2¹⁹ = 7862731337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2215102 + ... + 2218648.

Almost surely, 2^7863255625 is an apocalyptic number.

7863255625 is the 88675-th square number.

7863255625 is the 44338-th centered octagonal number.

It is an amenable number.

7863255625 is a deficient number, since it is larger than the sum of its proper divisors (1965439592).

7863255625 is an frugal number, since it uses more digits than its factorization.

7863255625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114 (or 3552 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The cubic root of 7863255625 is about 1988.5390845772.

Multiplying 7863255625 by its sum of digits (49), we get a square (385299525625 = 620725²).

The spelling of 7863255625 in words is "seven billion, eight hundred sixty-three million, two hundred fifty-five thousand, six hundred twenty-five".