26161049 has 2 divisors, whose sum is σ = 26161050. Its totient is φ = 26161048.

The previous prime is 26161033. The next prime is 26161063. The reversal of 26161049 is 94016162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17280649 + 8880400 = 4157^2 + 2980^2 .

It is a cyclic number.

It is not a de Polignac number, because 26161049 - 2⁴ = 26161033 is a prime.

It is not a weakly prime, because it can be changed into another prime (26161349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13080524 + 13080525.

It is an arithmetic number, because the mean of its divisors is an integer number (13080525).

Almost surely, 2^26161049 is an apocalyptic number.

It is an amenable number.

26161049 is a deficient number, since it is larger than the sum of its proper divisors (1).

26161049 is an equidigital number, since it uses as much as digits as its factorization.

26161049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 26161049 is about 5114.7872878547. The cubic root of 26161049 is about 296.8600239020.

The spelling of 26161049 in words is "twenty-six million, one hundred sixty-one thousand, forty-nine".