11611140025 has 27 divisors (see below), whose sum is σ = 15067102701. Its totient is φ = 8875563840.

The previous prime is 11611140011. The next prime is 11611140041. The reversal of 11611140025 is 52004111611.

It is a happy number.

The square root of 11611140025 is 107755.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4770526761 + 6840613264 = 69069^2 + 82708^2 .

It is not a de Polignac number, because 11611140025 - 2¹¹ = 11611137977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11611139978 and 11611140005.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12391357 + ... + 12392293.

Almost surely, 2^11611140025 is an apocalyptic number.

11611140025 is the 107755-th square number.

11611140025 is the 53878-th centered octagonal number.

It is an amenable number.

11611140025 is a deficient number, since it is larger than the sum of its proper divisors (3455962676).

11611140025 is an frugal number, since it uses more digits than its factorization.

11611140025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 11611140025 its reverse (52004111611), we get a palindrome (63615251636).

The spelling of 11611140025 in words is "eleven billion, six hundred eleven million, one hundred forty thousand, twenty-five".