25591260 has 48 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 6736704.

The previous prime is 25591231. The next prime is 25591261. The reversal of 25591260 is 6219552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25591261) 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, 2041 + ... + 7439.

It is an arithmetic number, because the mean of its divisors is an integer number (1512000).

Almost surely, 2^25591260 is an apocalyptic number.

25591260 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 25591260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

25591260 is an abundant number, since it is smaller than the sum of its proper divisors (46984740).

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

25591260 is a wasteful number, since it uses less digits than its factorization.

25591260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490 (or 5488 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 25591260 is about 5058.7804854530. The cubic root of 25591260 is about 294.6889760368.

The spelling of 25591260 in words is "twenty-five million, five hundred ninety-one thousand, two hundred sixty".