26135725 has 24 divisors (see below), whose sum is σ = 40408128. Its totient is φ = 16291200.

The previous prime is 26135723. The next prime is 26135729. The reversal of 26135725 is 52753162.

It is not a de Polignac number, because 26135725 - 2¹ = 26135723 is a prime.

It is a super-2 number, since 2×26135725² = 1366152242551250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26135723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4864 + ... + 8713.

It is an arithmetic number, because the mean of its divisors is an integer number (1683672).

Almost surely, 2^26135725 is an apocalyptic number.

26135725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26135725 is a deficient number, since it is larger than the sum of its proper divisors (14272403).

26135725 is a wasteful number, since it uses less digits than its factorization.

26135725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13605 (or 13600 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 26135725 is about 5112.3111212054. The cubic root of 26135725 is about 296.7642057480.

Adding to 26135725 its reverse (52753162), we get a palindrome (78888887).

It can be divided in two parts, 2613 and 5725, that added together give a palindrome (8338).

The spelling of 26135725 in words is "twenty-six million, one hundred thirty-five thousand, seven hundred twenty-five".