25389020 has 24 divisors (see below), whose sum is σ = 53995200. Its totient is φ = 10026432.

The previous prime is 25389011. The next prime is 25389037. The reversal of 25389020 is 2098352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6455 + ... + 9614.

It is an arithmetic number, because the mean of its divisors is an integer number (2249800).

Almost surely, 2^25389020 is an apocalyptic number.

25389020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25389020 is an abundant number, since it is smaller than the sum of its proper divisors (28606180).

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

25389020 is a wasteful number, since it uses less digits than its factorization.

25389020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157 (or 16155 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 25389020 is about 5038.7518295705. The cubic root of 25389020 is about 293.9106427808.

The spelling of 25389020 in words is "twenty-five million, three hundred eighty-nine thousand, twenty".