2509439013 has 12 divisors (see below), whose sum is σ = 3652416768. Its totient is φ = 1660187880.

The previous prime is 2509438973. The next prime is 2509439033. The reversal of 2509439013 is 3109349052.

It is a happy number.

2509439013 is a `hidden beast` number, since 250 + 9 + 4 + 390 + 13 = 666.

It is not a de Polignac number, because 2509439013 - 2⁶ = 2509438949 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509439033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063045 + ... + 1065402.

It is an arithmetic number, because the mean of its divisors is an integer number (304368064).

Almost surely, 2^2509439013 is an apocalyptic number.

It is an amenable number.

2509439013 is a deficient number, since it is larger than the sum of its proper divisors (1142977755).

2509439013 is a wasteful number, since it uses less digits than its factorization.

2509439013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128584 (or 2128581 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 2509439013 is about 50094.3012028314. The cubic root of 2509439013 is about 1358.9147579760.

The spelling of 2509439013 in words is "two billion, five hundred nine million, four hundred thirty-nine thousand, thirteen".