26542531 has 2 divisors, whose sum is σ = 26542532. Its totient is φ = 26542530.

The previous prime is 26542513. The next prime is 26542547. The reversal of 26542531 is 13524562.

Together with previous prime (26542513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26542531 - 2⁷ = 26542403 is a prime.

It is a super-2 number, since 2×26542531² = 1409011903771922, which contains 22 as substring.

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 26542531.

It is not a weakly prime, because it can be changed into another prime (26542561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13271265 + 13271266.

It is an arithmetic number, because the mean of its divisors is an integer number (13271266).

Almost surely, 2^26542531 is an apocalyptic number.

26542531 is a deficient number, since it is larger than the sum of its proper divisors (1).

26542531 is an equidigital number, since it uses as much as digits as its factorization.

26542531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 26542531 is about 5151.9443902278. The cubic root of 26542531 is about 298.2960100897.

The spelling of 26542531 in words is "twenty-six million, five hundred forty-two thousand, five hundred thirty-one".