26812425025 has 9 divisors (see below), whose sum is σ = 33248422281. Its totient is φ = 21449285040.

The previous prime is 26812425023. The next prime is 26812425037. The reversal of 26812425025 is 52052421862.

The square root of 26812425025 is 163745.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4018672449 + 22793752576 = 63393^2 + 150976^2 .

It is not a de Polignac number, because 26812425025 - 2¹ = 26812425023 is a prime.

It is a super-3 number, since 3×26812425025³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26812425023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 802351 + ... + 835099.

Almost surely, 2^26812425025 is an apocalyptic number.

26812425025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26812425025 is the 163745-th square number.

26812425025 is the 81873-rd centered octagonal number.

It is an amenable number.

26812425025 is a deficient number, since it is larger than the sum of its proper divisors (6435997256).

26812425025 is an frugal number, since it uses more digits than its factorization.

26812425025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65508 (or 32754 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 26812425025 its reverse (52052421862), we get a palindrome (78864846887).

It can be divided in two parts, 2681 and 2425025, that added together give a triangular number (2427706 = T₂₂₀₃).

The spelling of 26812425025 in words is "twenty-six billion, eight hundred twelve million, four hundred twenty-five thousand, twenty-five".