2961318725 has 12 divisors (see below), whose sum is σ = 3674855940. Its totient is φ = 2367235200.

The previous prime is 2961318691. The next prime is 2961318727. The reversal of 2961318725 is 5278131692.

It is a Cunningham number, because it is equal to 54418²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 2961318724 = 1^2 + 54418^2 .

It is not a de Polignac number, because 2961318725 - 2⁸ = 2961318469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961318727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11810 + ... + 77859.

It is an arithmetic number, because the mean of its divisors is an integer number (306237995).

Almost surely, 2^2961318725 is an apocalyptic number.

2961318725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2961318725 is a deficient number, since it is larger than the sum of its proper divisors (713537215).

2961318725 is a wasteful number, since it uses less digits than its factorization.

2961318725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91000 (or 90995 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 2961318725 is about 54418.0000091881. Note that the first 5 decimals coincide. The cubic root of 2961318725 is about 1436.0240639468.

The spelling of 2961318725 in words is "two billion, nine hundred sixty-one million, three hundred eighteen thousand, seven hundred twenty-five".