26430025 has 12 divisors (see below), whose sum is σ = 33660172. Its totient is φ = 20571840.

The previous prime is 26430023. The next prime is 26430029. The reversal of 26430025 is 52003462.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2105401 + 24324624 = 1451^2 + 4932^2 .

It is not a de Polignac number, because 26430025 - 2¹ = 26430023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26429978 and 26430005.

It is not an unprimeable number, because it can be changed into a prime (26430023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13362 + ... + 15211.

Almost surely, 2^26430025 is an apocalyptic number.

26430025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26430025 is a deficient number, since it is larger than the sum of its proper divisors (7230147).

26430025 is a wasteful number, since it uses less digits than its factorization.

26430025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28620 (or 28615 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 26430025 is about 5141.0140050383. The cubic root of 26430025 is about 297.8739501134.

Adding to 26430025 its reverse (52003462), we get a palindrome (78433487).

The spelling of 26430025 in words is "twenty-six million, four hundred thirty thousand, twenty-five".