2501287539 has 8 divisors (see below), whose sum is σ = 3348338112. Its totient is φ = 1660881000.

The previous prime is 2501287531. The next prime is 2501287543. The reversal of 2501287539 is 9357821052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2501287539 - 2³ = 2501287531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2501287539.

It is not an unprimeable number, because it can be changed into a prime (2501287531) 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 7 ways as a sum of consecutive naturals, for example, 1660129 + ... + 1661634.

It is an arithmetic number, because the mean of its divisors is an integer number (418542264).

Almost surely, 2^2501287539 is an apocalyptic number.

2501287539 is a deficient number, since it is larger than the sum of its proper divisors (847050573).

2501287539 is a wasteful number, since it uses less digits than its factorization.

2501287539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322017.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 2501287539 is about 50012.8737326701. The cubic root of 2501287539 is about 1357.4417628799.

The spelling of 2501287539 in words is "two billion, five hundred one million, two hundred eighty-seven thousand, five hundred thirty-nine".