2758252613 has 4 divisors (see below), whose sum is σ = 2761184748. Its totient is φ = 2755320480.

The previous prime is 2758252571. The next prime is 2758252619. The reversal of 2758252613 is 3162528572.

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 1446509089 + 1311743524 = 38033^2 + 36218^2 .

It is a cyclic number.

It is not a de Polignac number, because 2758252613 - 2¹² = 2758248517 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 (2758252619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464656 + ... + 1466537.

It is an arithmetic number, because the mean of its divisors is an integer number (690296187).

Almost surely, 2^2758252613 is an apocalyptic number.

It is an amenable number.

2758252613 is a deficient number, since it is larger than the sum of its proper divisors (2932135).

2758252613 is an equidigital number, since it uses as much as digits as its factorization.

2758252613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932134.

The product of its digits is 201600, while the sum is 41.

The square root of 2758252613 is about 52519.0690416348. The cubic root of 2758252613 is about 1402.4197291595.

The spelling of 2758252613 in words is "two billion, seven hundred fifty-eight million, two hundred fifty-two thousand, six hundred thirteen".