25380028 has 6 divisors (see below), whose sum is σ = 44415056. Its totient is φ = 12690012.

The previous prime is 25380011. The next prime is 25380059. The reversal of 25380028 is 82008352.

It is a junction number, because it is equal to n+sod(n) for n = 25379978 and 25380005.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3172500 + ... + 3172507.

Almost surely, 2^25380028 is an apocalyptic number.

It is an amenable number.

25380028 is a deficient number, since it is larger than the sum of its proper divisors (19035028).

25380028 is a wasteful number, since it uses less digits than its factorization.

25380028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345011 (or 6345009 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 25380028 is about 5037.8594660828. The cubic root of 25380028 is about 293.8759406856.

It can be divided in two parts, 253800 and 28, that added together give a triangular number (253828 = T₇₁₂).

The spelling of 25380028 in words is "twenty-five million, three hundred eighty thousand, twenty-eight".