2525649099 has 4 divisors (see below), whose sum is σ = 3367532136. Its totient is φ = 1683766064.

The previous prime is 2525649083. The next prime is 2525649131. The reversal of 2525649099 is 9909465252.

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

It is a cyclic number.

It is not a de Polignac number, because 2525649099 - 2⁴ = 2525649083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2525649059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420941514 + ... + 420941519.

It is an arithmetic number, because the mean of its divisors is an integer number (841883034).

Almost surely, 2^2525649099 is an apocalyptic number.

2525649099 is a deficient number, since it is larger than the sum of its proper divisors (841883037).

2525649099 is an equidigital number, since it uses as much as digits as its factorization.

2525649099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841883036.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 2525649099 is about 50255.8364670214. The cubic root of 2525649099 is about 1361.8345158946.

The spelling of 2525649099 in words is "two billion, five hundred twenty-five million, six hundred forty-nine thousand, ninety-nine".