26415401 has 2 divisors, whose sum is σ = 26415402. Its totient is φ = 26415400.

The previous prime is 26415391. The next prime is 26415409. The reversal of 26415401 is 10451462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25603600 + 811801 = 5060^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 26415401 - 2¹⁴ = 26399017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (26415409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13207700 + 13207701.

It is an arithmetic number, because the mean of its divisors is an integer number (13207701).

Almost surely, 2^26415401 is an apocalyptic number.

It is an amenable number.

26415401 is a deficient number, since it is larger than the sum of its proper divisors (1).

26415401 is an equidigital number, since it uses as much as digits as its factorization.

26415401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 26415401 is about 5139.5915207339. The cubic root of 26415401 is about 297.8190010883.

Adding to 26415401 its reverse (10451462), we get a palindrome (36866863).

The spelling of 26415401 in words is "twenty-six million, four hundred fifteen thousand, four hundred one".