26500007 has 2 divisors, whose sum is σ = 26500008. Its totient is φ = 26500006.

The previous prime is 26499989. The next prime is 26500013. The reversal of 26500007 is 70000562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26500007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26500087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13250003 + 13250004.

It is an arithmetic number, because the mean of its divisors is an integer number (13250004).

Almost surely, 2^26500007 is an apocalyptic number.

26500007 is a deficient number, since it is larger than the sum of its proper divisors (1).

26500007 is an equidigital number, since it uses as much as digits as its factorization.

26500007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 26500007 is about 5147.8157503936. The cubic root of 26500007 is about 298.1366241382.

Adding to 26500007 its reverse (70000562), we get a palindrome (96500569).

The spelling of 26500007 in words is "twenty-six million, five hundred thousand, seven".