25358920 has 64 divisors (see below), whose sum is σ = 61156800. Its totient is φ = 9434880.

The previous prime is 25358911. The next prime is 25358929. The reversal of 25358920 is 2985352.

It is an interprime number because it is at equal distance from previous prime (25358911) and next prime (25358929).

It is not an unprimeable number, because it can be changed into a prime (25358929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46087 + ... + 46633.

It is an arithmetic number, because the mean of its divisors is an integer number (955575).

Almost surely, 2^25358920 is an apocalyptic number.

25358920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25358920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30578400).

25358920 is an abundant number, since it is smaller than the sum of its proper divisors (35797880).

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

25358920 is a wasteful number, since it uses less digits than its factorization.

25358920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 25358920 is about 5035.7640929654. The cubic root of 25358920 is about 293.7944480802.

The spelling of 25358920 in words is "twenty-five million, three hundred fifty-eight thousand, nine hundred twenty".