2539219995 has 112 divisors (see below), whose sum is σ = 5043784032. Its totient is φ = 1218654720.

The previous prime is 2539219981. The next prime is 2539219997. The reversal of 2539219995 is 5999129352.

It is a happy number.

2539219995 is a `hidden beast` number, since 2 + 539 + 2 + 19 + 9 + 95 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2539219995 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2539219997) 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 111 ways as a sum of consecutive naturals, for example, 1942132 + ... + 1943438.

It is an arithmetic number, because the mean of its divisors is an integer number (45033786).

Almost surely, 2^2539219995 is an apocalyptic number.

2539219995 is a deficient number, since it is larger than the sum of its proper divisors (2504564037).

2539219995 is a wasteful number, since it uses less digits than its factorization.

2539219995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1369 counting only the distinct ones).

The product of its digits is 1968300, while the sum is 54.

The square root of 2539219995 is about 50390.6736906742. The cubic root of 2539219995 is about 1364.2693106560.

The spelling of 2539219995 in words is "two billion, five hundred thirty-nine million, two hundred nineteen thousand, nine hundred ninety-five".