26478625 has 16 divisors (see below), whose sum is σ = 33755904. Its totient is φ = 20727600.

The previous prime is 26478623. The next prime is 26478649. The reversal of 26478625 is 52687462.

It is not a de Polignac number, because 26478625 - 2¹ = 26478623 is a prime.

It is a super-2 number, since 2×26478625² = 1402235163781250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26478623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3622 + ... + 8128.

It is an arithmetic number, because the mean of its divisors is an integer number (2109744).

Almost surely, 2^26478625 is an apocalyptic number.

26478625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26478625 is a deficient number, since it is larger than the sum of its proper divisors (7277279).

26478625 is an equidigital number, since it uses as much as digits as its factorization.

26478625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569 (or 4559 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 26478625 is about 5145.7385281415. The cubic root of 26478625 is about 298.0564169569.

The spelling of 26478625 in words is "twenty-six million, four hundred seventy-eight thousand, six hundred twenty-five".