26450491 has 2 divisors, whose sum is σ = 26450492. Its totient is φ = 26450490.

The previous prime is 26450477. The next prime is 26450509. The reversal of 26450491 is 19405462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26450491 - 2²¹ = 24353339 is a prime.

It is not a weakly prime, because it can be changed into another prime (26450401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13225245 + 13225246.

It is an arithmetic number, because the mean of its divisors is an integer number (13225246).

Almost surely, 2^26450491 is an apocalyptic number.

26450491 is a deficient number, since it is larger than the sum of its proper divisors (1).

26450491 is an equidigital number, since it uses as much as digits as its factorization.

26450491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26450491 is about 5143.0040832183. The cubic root of 26450491 is about 297.9508161700.

The spelling of 26450491 in words is "twenty-six million, four hundred fifty thousand, four hundred ninety-one".