2539363885 has 4 divisors (see below), whose sum is σ = 3047236668. Its totient is φ = 2031491104.

The previous prime is 2539363877. The next prime is 2539363891. The reversal of 2539363885 is 5883639352.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1684035369 + 855328516 = 41037^2 + 29246^2 .

It is a cyclic number.

It is not a de Polignac number, because 2539363885 - 2³ = 2539363877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 253936384 + ... + 253936393.

It is an arithmetic number, because the mean of its divisors is an integer number (761809167).

Almost surely, 2^2539363885 is an apocalyptic number.

It is an amenable number.

2539363885 is a deficient number, since it is larger than the sum of its proper divisors (507872783).

2539363885 is an equidigital number, since it uses as much as digits as its factorization.

2539363885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507872782.

The product of its digits is 4665600, while the sum is 52.

The square root of 2539363885 is about 50392.1014148051. The cubic root of 2539363885 is about 1364.2950798560.

The spelling of 2539363885 in words is "two billion, five hundred thirty-nine million, three hundred sixty-three thousand, eight hundred eighty-five".