25491360 has 96 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 6499328.

The previous prime is 25491329. The next prime is 25491371. The reversal of 25491360 is 6319452.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9886 + ... + 12194.

It is an arithmetic number, because the mean of its divisors is an integer number (873180).

Almost surely, 2^25491360 is an apocalyptic number.

25491360 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 25491360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41912640).

25491360 is an abundant number, since it is smaller than the sum of its proper divisors (58333920).

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

25491360 is a wasteful number, since it uses less digits than its factorization.

25491360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350 (or 2342 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 25491360 is about 5048.8969092268. The cubic root of 25491360 is about 294.3050191789.

The spelling of 25491360 in words is "twenty-five million, four hundred ninety-one thousand, three hundred sixty".