26513401 has 4 divisors (see below), whose sum is σ = 27368704. Its totient is φ = 25658100.

The previous prime is 26513363. The next prime is 26513419. The reversal of 26513401 is 10431562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26513401 - 2¹⁵ = 26480633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26513471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427605 + ... + 427666.

It is an arithmetic number, because the mean of its divisors is an integer number (6842176).

Almost surely, 2^26513401 is an apocalyptic number.

It is an amenable number.

26513401 is a deficient number, since it is larger than the sum of its proper divisors (855303).

26513401 is an equidigital number, since it uses as much as digits as its factorization.

26513401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855302.

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

The square root of 26513401 is about 5149.1165261625. The cubic root of 26513401 is about 298.1868451232.

Adding to 26513401 its reverse (10431562), we get a palindrome (36944963).

The spelling of 26513401 in words is "twenty-six million, five hundred thirteen thousand, four hundred one".