26425661 has 2 divisors, whose sum is σ = 26425662. Its totient is φ = 26425660.

The previous prime is 26425657. The next prime is 26425669. The reversal of 26425661 is 16652462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 7806436 = 4315^2 + 2794^2 .

It is a cyclic number.

It is not a de Polignac number, because 26425661 - 2² = 26425657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26425669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13212830 + 13212831.

It is an arithmetic number, because the mean of its divisors is an integer number (13212831).

Almost surely, 2^26425661 is an apocalyptic number.

It is an amenable number.

26425661 is a deficient number, since it is larger than the sum of its proper divisors (1).

26425661 is an equidigital number, since it uses as much as digits as its factorization.

26425661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 26425661 is about 5140.5895576286. The cubic root of 26425661 is about 297.8575547011.

The spelling of 26425661 in words is "twenty-six million, four hundred twenty-five thousand, six hundred sixty-one".