26152661 has 2 divisors, whose sum is σ = 26152662. Its totient is φ = 26152660.

The previous prime is 26152657. The next prime is 26152663. The reversal of 26152661 is 16625162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 498436 = 5065^2 + 706^2 .

It is a cyclic number.

It is not a de Polignac number, because 26152661 - 2² = 26152657 is a prime.

Together with 26152663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26152663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13076330 + 13076331.

It is an arithmetic number, because the mean of its divisors is an integer number (13076331).

Almost surely, 2^26152661 is an apocalyptic number.

It is an amenable number.

26152661 is a deficient number, since it is larger than the sum of its proper divisors (1).

26152661 is an equidigital number, since it uses as much as digits as its factorization.

26152661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 26152661 is about 5113.9672466687. The cubic root of 26152661 is about 296.8282931655.

The spelling of 26152661 in words is "twenty-six million, one hundred fifty-two thousand, six hundred sixty-one".