25025920 has 32 divisors (see below), whose sum is σ = 59829120. Its totient is φ = 10010112.

The previous prime is 25025899. The next prime is 25025939. The reversal of 25025920 is 2952052.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18912 + ... + 20191.

It is an arithmetic number, because the mean of its divisors is an integer number (1869660).

Almost surely, 2^25025920 is an apocalyptic number.

25025920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25025920 is an abundant number, since it is smaller than the sum of its proper divisors (34803200).

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

25025920 is an equidigital number, since it uses as much as digits as its factorization.

25025920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39122 (or 39110 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25025920 is about 5002.5913285017. The cubic root of 25025920 is about 292.5027929701.

Adding to 25025920 its reverse (2952052), we get a palindrome (27977972).

The spelling of 25025920 in words is "twenty-five million, twenty-five thousand, nine hundred twenty".