2752752781 has 2 divisors, whose sum is σ = 2752752782. Its totient is φ = 2752752780.

The previous prime is 2752752757. The next prime is 2752752853. The reversal of 2752752781 is 1872572572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2734348681 + 18404100 = 52291^2 + 4290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2752752781 - 2¹¹ = 2752750733 is a prime.

It is a super-2 number, since 2×2752752781² = 15155295746606467922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2752752731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1376376390 + 1376376391.

It is an arithmetic number, because the mean of its divisors is an integer number (1376376391).

Almost surely, 2^2752752781 is an apocalyptic number.

It is an amenable number.

2752752781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2752752781 is an equidigital number, since it uses as much as digits as its factorization.

2752752781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 548800, while the sum is 46.

The square root of 2752752781 is about 52466.6825804720. The cubic root of 2752752781 is about 1401.4869882566.

It can be divided in two parts, 27527 and 52781, that added together give a palindrome (80308).

The spelling of 2752752781 in words is "two billion, seven hundred fifty-two million, seven hundred fifty-two thousand, seven hundred eighty-one".