26280625 has 20 divisors (see below), whose sum is σ = 37537984. Its totient is φ = 18018000.

The previous prime is 26280613. The next prime is 26280637. The reversal of 26280625 is 52608262.

It is an interprime number because it is at equal distance from previous prime (26280613) and next prime (26280637).

It is not a de Polignac number, because 26280625 - 2¹⁵ = 26247857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1372 + ... + 7378.

Almost surely, 2^26280625 is an apocalyptic number.

26280625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26280625 is a deficient number, since it is larger than the sum of its proper divisors (11257359).

26280625 is an frugal number, since it uses more digits than its factorization.

26280625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6034 (or 6019 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 26280625 is about 5126.4632057589. The cubic root of 26280625 is about 297.3116289811.

Adding to 26280625 its reverse (52608262), we get a palindrome (78888887).

The spelling of 26280625 in words is "twenty-six million, two hundred eighty thousand, six hundred twenty-five".