25140608 has 32 divisors (see below), whose sum is σ = 50949000. Its totient is φ = 12353536.

The previous prime is 25140607. The next prime is 25140641. The reversal of 25140608 is 80604152.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5888 + ... + 9216.

Almost surely, 2^25140608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25140608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25474500).

25140608 is an abundant number, since it is smaller than the sum of its proper divisors (25808392).

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

25140608 is an equidigital number, since it uses as much as digits as its factorization.

25140608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 25140608 is about 5014.0410847938. The cubic root of 25140608 is about 292.9489363423.

The spelling of 25140608 in words is "twenty-five million, one hundred forty thousand, six hundred eight".