6258778525 has 24 divisors (see below), whose sum is σ = 7830693000. Its totient is φ = 4962144000.

The previous prime is 6258778517. The next prime is 6258778529. The reversal of 6258778525 is 5258778526.

6258778525 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 2846115801 + 3412662724 = 53349^2 + 58418^2 .

It is not a de Polignac number, because 6258778525 - 2³ = 6258778517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6258778529) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1894375 + ... + 1897675.

It is an arithmetic number, because the mean of its divisors is an integer number (326278875).

Almost surely, 2^6258778525 is an apocalyptic number.

It is an amenable number.

6258778525 is a deficient number, since it is larger than the sum of its proper divisors (1571914475).

6258778525 is a wasteful number, since it uses less digits than its factorization.

6258778525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969 (or 3964 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 55.

The square root of 6258778525 is about 79112.4422894402. The cubic root of 6258778525 is about 1842.8777555347.

Subtracting from 6258778525 its reverse (5258778526), we obtain a palindrome (999999999).

The spelling of 6258778525 in words is "six billion, two hundred fifty-eight million, seven hundred seventy-eight thousand, five hundred twenty-five".