2509986525 has 24 divisors (see below), whose sum is σ = 4165656000. Its totient is φ = 1333559040.

The previous prime is 2509986487. The next prime is 2509986529. The reversal of 2509986525 is 5256899052.

It is not a de Polignac number, because 2509986525 - 2⁶ = 2509986461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509986529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43900 + ... + 83349.

It is an arithmetic number, because the mean of its divisors is an integer number (173569000).

Almost surely, 2^2509986525 is an apocalyptic number.

2509986525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2509986525 is a deficient number, since it is larger than the sum of its proper divisors (1655669475).

2509986525 is a wasteful number, since it uses less digits than its factorization.

2509986525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127525 (or 127520 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 51.

The square root of 2509986525 is about 50099.7657180151. The cubic root of 2509986525 is about 1359.0135805985.

The spelling of 2509986525 in words is "two billion, five hundred nine million, nine hundred eighty-six thousand, five hundred twenty-five".