25573028 has 12 divisors (see below), whose sum is σ = 48195420. Its totient is φ = 11802912.

The previous prime is 25573027. The next prime is 25573043. The reversal of 25573028 is 82037552.

It can be written as a sum of positive squares in 2 ways, for example, as 2166784 + 23406244 = 1472^2 + 4838^2 .

It is a super-2 number, since 2×25573028² = 1307959522177568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25572985 and 25573003.

It is not an unprimeable number, because it can be changed into a prime (25573027) 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 3 ways as a sum of consecutive naturals, for example, 245843 + ... + 245946.

It is an arithmetic number, because the mean of its divisors is an integer number (4016285).

Almost surely, 2^25573028 is an apocalyptic number.

It is an amenable number.

25573028 is a deficient number, since it is larger than the sum of its proper divisors (22622392).

25573028 is a wasteful number, since it uses less digits than its factorization.

25573028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491806 (or 491804 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 25573028 is about 5056.9781490530. The cubic root of 25573028 is about 294.6189775839.

The spelling of 25573028 in words is "twenty-five million, five hundred seventy-three thousand, twenty-eight".