2525647205 has 4 divisors (see below), whose sum is σ = 3030776652. Its totient is φ = 2020517760.

The previous prime is 2525647193. The next prime is 2525647231. The reversal of 2525647205 is 5027465252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 761815201 + 1763832004 = 27601^2 + 41998^2 .

It is not a de Polignac number, because 2525647205 - 2⁶ = 2525647141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252564716 + ... + 252564725.

It is an arithmetic number, because the mean of its divisors is an integer number (757694163).

Almost surely, 2^2525647205 is an apocalyptic number.

It is an amenable number.

2525647205 is a deficient number, since it is larger than the sum of its proper divisors (505129447).

2525647205 is an equidigital number, since it uses as much as digits as its factorization.

2525647205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505129446.

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 2525647205 is about 50255.8176234354. The cubic root of 2525647205 is about 1361.8341754784.

The spelling of 2525647205 in words is "two billion, five hundred twenty-five million, six hundred forty-seven thousand, two hundred five".