7012555081 has 15 divisors (see below), whose sum is σ = 8185617191. Its totient is φ = 6007244376.

The previous prime is 7012555073. The next prime is 7012555091. The reversal of 7012555081 is 1805552107.

The square root of 7012555081 is 83741.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1318343481 + 5694211600 = 36309^2 + 75460^2 .

It is not a de Polignac number, because 7012555081 - 2³ = 7012555073 is a prime.

It is a super-2 number, since 2×7012555081² = 98351857528117833122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7012555061) 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 14 ways as a sum of consecutive naturals, for example, 4102455 + ... + 4104163.

Almost surely, 2^7012555081 is an apocalyptic number.

7012555081 is the 83741-st square number.

7012555081 is the 41871-st centered octagonal number.

It is an amenable number.

7012555081 is a deficient number, since it is larger than the sum of its proper divisors (1173062110).

7012555081 is an frugal number, since it uses more digits than its factorization.

7012555081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 34.

The cubic root of 7012555081 is about 1914.0741666489.

The spelling of 7012555081 in words is "seven billion, twelve million, five hundred fifty-five thousand, eighty-one".