25357920 has 96 divisors (see below), whose sum is σ = 91300608. Its totient is φ = 5795328.

The previous prime is 25357901. The next prime is 25357921. The reversal of 25357920 is 2975352.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25357921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (951048).

Almost surely, 2^25357920 is an apocalyptic number.

25357920 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 25357920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45650304).

25357920 is an abundant number, since it is smaller than the sum of its proper divisors (65942688).

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

25357920 is a wasteful number, since it uses less digits than its factorization.

25357920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572 (or 7564 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 25357920 is about 5035.6648021885. The cubic root of 25357920 is about 293.7905862135.

The spelling of 25357920 in words is "twenty-five million, three hundred fifty-seven thousand, nine hundred twenty".