26404625 has 16 divisors (see below), whose sum is σ = 35490000. Its totient is φ = 19497600.

The previous prime is 26404619. The next prime is 26404627. The reversal of 26404625 is 52640462.

It can be written as a sum of positive squares in 8 ways, for example, as 12327121 + 14077504 = 3511^2 + 3752^2 .

It is not a de Polignac number, because 26404625 - 2⁶ = 26404561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26404627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6500 + ... + 9749.

It is an arithmetic number, because the mean of its divisors is an integer number (2218125).

Almost surely, 2^26404625 is an apocalyptic number.

26404625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26404625 is a deficient number, since it is larger than the sum of its proper divisors (9085375).

26404625 is a wasteful number, since it uses less digits than its factorization.

26404625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16277 (or 16267 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 26404625 is about 5138.5430814580. The cubic root of 26404625 is about 297.7784977716.

The spelling of 26404625 in words is "twenty-six million, four hundred four thousand, six hundred twenty-five".