26431051 has 2 divisors, whose sum is σ = 26431052. Its totient is φ = 26431050.

The previous prime is 26431049. The next prime is 26431079. The reversal of 26431051 is 15013462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26431051 - 2¹ = 26431049 is a prime.

Together with 26431049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26431001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13215525 + 13215526.

It is an arithmetic number, because the mean of its divisors is an integer number (13215526).

Almost surely, 2^26431051 is an apocalyptic number.

26431051 is a deficient number, since it is larger than the sum of its proper divisors (1).

26431051 is an equidigital number, since it uses as much as digits as its factorization.

26431051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 26431051 is about 5141.1137898319. The cubic root of 26431051 is about 297.8778045015.

The spelling of 26431051 in words is "twenty-six million, four hundred thirty-one thousand, fifty-one".