2509913399 has 8 divisors (see below), whose sum is σ = 2893858080. Its totient is φ = 2132315136.

The previous prime is 2509913363. The next prime is 2509913423. The reversal of 2509913399 is 9933199052.

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

It is a de Polignac number, because none of the positive numbers 2^k-2509913399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509913899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585754 + ... + 1587335.

It is an arithmetic number, because the mean of its divisors is an integer number (361732260).

Almost surely, 2^2509913399 is an apocalyptic number.

2509913399 is a deficient number, since it is larger than the sum of its proper divisors (383944681).

2509913399 is a wasteful number, since it uses less digits than its factorization.

2509913399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173209.

The product of its (nonzero) digits is 590490, while the sum is 50.

The square root of 2509913399 is about 50099.0359088875. The cubic root of 2509913399 is about 1359.0003826270. Note that the first 3 decimals are identical.

The spelling of 2509913399 in words is "two billion, five hundred nine million, nine hundred thirteen thousand, three hundred ninety-nine".