25382920 has 16 divisors (see below), whose sum is σ = 57111660. Its totient is φ = 10153152.

The previous prime is 25382891. The next prime is 25382933. The reversal of 25382920 is 2928352.

It can be written as a sum of positive squares in 2 ways, for example, as 22867524 + 2515396 = 4782^2 + 1586^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317247 + ... + 317326.

Almost surely, 2^25382920 is an apocalyptic number.

25382920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25382920 is an abundant number, since it is smaller than the sum of its proper divisors (31728740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25382920 is a wasteful number, since it uses less digits than its factorization.

25382920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634584 (or 634580 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 25382920 is about 5038.1464845715. The cubic root of 25382920 is about 293.8871024403.

The spelling of 25382920 in words is "twenty-five million, three hundred eighty-two thousand, nine hundred twenty".