2725016681 has 4 divisors (see below), whose sum is σ = 2737931664. Its totient is φ = 2712101700.

The previous prime is 2725016621. The next prime is 2725016699. The reversal of 2725016681 is 1866105272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2725016681 - 2⁶ = 2725016617 is a prime.

It is a super-2 number, since 2×2725016681² = 14851431823456511522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2725016621) 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, 6457175 + ... + 6457596.

It is an arithmetic number, because the mean of its divisors is an integer number (684482916).

Almost surely, 2^2725016681 is an apocalyptic number.

It is an amenable number.

2725016681 is a deficient number, since it is larger than the sum of its proper divisors (12914983).

2725016681 is a wasteful number, since it uses less digits than its factorization.

2725016681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914982.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 2725016681 is about 52201.6923193109. The cubic root of 2725016681 is about 1396.7640706943.

The spelling of 2725016681 in words is "two billion, seven hundred twenty-five million, sixteen thousand, six hundred eighty-one".