6527520025 has 24 divisors (see below), whose sum is σ = 8859674264. Its totient is φ = 4741286400.

The previous prime is 6527520019. The next prime is 6527520029. The reversal of 6527520025 is 5200257256.

It can be written as a sum of positive squares in 12 ways, for example, as 5141893849 + 1385626176 = 71707^2 + 37224^2 .

It is not a de Polignac number, because 6527520025 - 2⁵ = 6527519993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6527520029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144804 + ... + 184453.

Almost surely, 2^6527520025 is an apocalyptic number.

6527520025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6527520025 is a deficient number, since it is larger than the sum of its proper divisors (2332154239).

6527520025 is a wasteful number, since it uses less digits than its factorization.

6527520025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329341 (or 329336 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 6527520025 is about 80793.0691643782. The cubic root of 6527520025 is about 1868.8856854608.

The spelling of 6527520025 in words is "six billion, five hundred twenty-seven million, five hundred twenty thousand, twenty-five".