26551801 has 2 divisors, whose sum is σ = 26551802. Its totient is φ = 26551800.

The previous prime is 26551753. The next prime is 26551817. The reversal of 26551801 is 10815562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18147600 + 8404201 = 4260^2 + 2899^2 .

It is a cyclic number.

It is not a de Polignac number, because 26551801 - 2¹⁵ = 26519033 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26551801.

It is not a weakly prime, because it can be changed into another prime (26551891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13275900 + 13275901.

It is an arithmetic number, because the mean of its divisors is an integer number (13275901).

Almost surely, 2^26551801 is an apocalyptic number.

It is an amenable number.

26551801 is a deficient number, since it is larger than the sum of its proper divisors (1).

26551801 is an equidigital number, since it uses as much as digits as its factorization.

26551801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 26551801 is about 5152.8439720217. The cubic root of 26551801 is about 298.3307327537.

The spelling of 26551801 in words is "twenty-six million, five hundred fifty-one thousand, eight hundred one".