25213028 has 6 divisors (see below), whose sum is σ = 44122806. Its totient is φ = 12606512.

The previous prime is 25212997. The next prime is 25213031. The reversal of 25213028 is 82031252.

It can be written as a sum of positive squares in only one way, i.e., 16581184 + 8631844 = 4072^2 + 2938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25212994 and 25213012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3151625 + ... + 3151632.

It is an arithmetic number, because the mean of its divisors is an integer number (7353801).

Almost surely, 2^25213028 is an apocalyptic number.

It is an amenable number.

25213028 is a deficient number, since it is larger than the sum of its proper divisors (18909778).

25213028 is a wasteful number, since it uses less digits than its factorization.

25213028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303261 (or 6303259 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 25213028 is about 5021.2576113958. The cubic root of 25213028 is about 293.2299561109.

The spelling of 25213028 in words is "twenty-five million, two hundred thirteen thousand, twenty-eight".