25730180 has 96 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 7852032.

The previous prime is 25730179. The next prime is 25730189. The reversal of 25730180 is 8103752.

It is not an unprimeable number, because it can be changed into a prime (25730189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44936 + ... + 45504.

It is an arithmetic number, because the mean of its divisors is an integer number (718200).

Almost surely, 2^25730180 is an apocalyptic number.

25730180 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 25730180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34473600).

25730180 is an abundant number, since it is smaller than the sum of its proper divisors (43217020).

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

25730180 is a wasteful number, since it uses less digits than its factorization.

25730180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 25730180 is about 5072.4924839767. The cubic root of 25730180 is about 295.2212454996.

The spelling of 25730180 in words is "twenty-five million, seven hundred thirty thousand, one hundred eighty".