26139325 has 6 divisors (see below), whose sum is σ = 32412794. Its totient is φ = 20911440.

The previous prime is 26139317. The next prime is 26139331. The reversal of 26139325 is 52393162.

It can be written as a sum of positive squares in 3 ways, for example, as 8608356 + 17530969 = 2934^2 + 4187^2 .

It is not a de Polignac number, because 26139325 - 2³ = 26139317 is a prime.

It is a super-2 number, since 2×26139325² = 1366528622911250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522762 + ... + 522811.

Almost surely, 2^26139325 is an apocalyptic number.

26139325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26139325 is a deficient number, since it is larger than the sum of its proper divisors (6273469).

26139325 is a wasteful number, since it uses less digits than its factorization.

26139325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045583 (or 1045578 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 26139325 is about 5112.6632003292. The cubic root of 26139325 is about 296.7778308032. Note that the first 3 decimals are identical.

The spelling of 26139325 in words is "twenty-six million, one hundred thirty-nine thousand, three hundred twenty-five".