26413531 has 2 divisors, whose sum is σ = 26413532. Its totient is φ = 26413530.

The previous prime is 26413507. The next prime is 26413573. The reversal of 26413531 is 13531462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26413531 - 2¹⁵ = 26380763 is a prime.

It is a super-2 number, since 2×26413531² = 1395349239775922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26413496 and 26413505.

It is not a weakly prime, because it can be changed into another prime (26413501) 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, 13206765 + 13206766.

It is an arithmetic number, because the mean of its divisors is an integer number (13206766).

Almost surely, 2^26413531 is an apocalyptic number.

26413531 is a deficient number, since it is larger than the sum of its proper divisors (1).

26413531 is an equidigital number, since it uses as much as digits as its factorization.

26413531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 26413531 is about 5139.4095964420. The cubic root of 26413531 is about 297.8119731848.

Adding to 26413531 its reverse (13531462), we get a palindrome (39944993).

The spelling of 26413531 in words is "twenty-six million, four hundred thirteen thousand, five hundred thirty-one".