25066820 has 24 divisors (see below), whose sum is σ = 52773504. Its totient is φ = 10001376.

The previous prime is 25066787. The next prime is 25066829. The reversal of 25066820 is 2866052.

It is not an unprimeable number, because it can be changed into a prime (25066829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7907 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (2198896).

Almost surely, 2^25066820 is an apocalyptic number.

25066820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25066820 is an abundant number, since it is smaller than the sum of its proper divisors (27706684).

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

25066820 is a wasteful number, since it uses less digits than its factorization.

25066820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179 (or 3177 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 25066820 is about 5006.6775410446. The cubic root of 25066820 is about 292.6620525549.

The spelling of 25066820 in words is "twenty-five million, sixty-six thousand, eight hundred twenty".