2539695853 has 2 divisors, whose sum is σ = 2539695854. Its totient is φ = 2539695852.

The previous prime is 2539695839. The next prime is 2539695877. The reversal of 2539695853 is 3585969352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1590254884 + 949440969 = 39878^2 + 30813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2539695853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2539695794 and 2539695803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2539695883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269847926 + 1269847927.

It is an arithmetic number, because the mean of its divisors is an integer number (1269847927).

Almost surely, 2^2539695853 is an apocalyptic number.

It is an amenable number.

2539695853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2539695853 is an equidigital number, since it uses as much as digits as its factorization.

2539695853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748000, while the sum is 55.

The square root of 2539695853 is about 50395.3951567006. The cubic root of 2539695853 is about 1364.3545281529.

The spelling of 2539695853 in words is "two billion, five hundred thirty-nine million, six hundred ninety-five thousand, eight hundred fifty-three".