11555125441 has 2 divisors, whose sum is σ = 11555125442. Its totient is φ = 11555125440.

The previous prime is 11555125409. The next prime is 11555125511. The reversal of 11555125441 is 14452155511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10472452225 + 1082673216 = 102335^2 + 32904^2 .

It is a cyclic number.

It is not a de Polignac number, because 11555125441 - 2⁵ = 11555125409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11555125397 and 11555125406.

It is not a weakly prime, because it can be changed into another prime (11555125541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777562720 + 5777562721.

It is an arithmetic number, because the mean of its divisors is an integer number (5777562721).

Almost surely, 2^11555125441 is an apocalyptic number.

It is an amenable number.

11555125441 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555125441 is an equidigital number, since it uses as much as digits as its factorization.

11555125441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20000, while the sum is 34.

The spelling of 11555125441 in words is "eleven billion, five hundred fifty-five million, one hundred twenty-five thousand, four hundred forty-one".