25479044 has 12 divisors (see below), whose sum is σ = 45199644. Its totient is φ = 12564864.

The previous prime is 25479037. The next prime is 25479049. The reversal of 25479044 is 44097452.

It can be written as a sum of positive squares in 2 ways, for example, as 5569600 + 19909444 = 2360^2 + 4462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25478995 and 25479013.

It is not an unprimeable number, because it can be changed into a prime (25479049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43337 + ... + 43920.

It is an arithmetic number, because the mean of its divisors is an integer number (3766637).

Almost surely, 2^25479044 is an apocalyptic number.

It is an amenable number.

25479044 is a deficient number, since it is larger than the sum of its proper divisors (19720600).

25479044 is a wasteful number, since it uses less digits than its factorization.

25479044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87334 (or 87332 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 25479044 is about 5047.6770895136. The cubic root of 25479044 is about 294.2576142998.

The spelling of 25479044 in words is "twenty-five million, four hundred seventy-nine thousand, forty-four".