25790180 has 48 divisors (see below), whose sum is σ = 58698864. Its totient is φ = 9461760.

The previous prime is 25790179. The next prime is 25790197. The reversal of 25790180 is 8109752.

It can be written as a sum of positive squares in 8 ways, for example, as 1267876 + 24522304 = 1126^2 + 4952^2 .

It is an unprimeable number.

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, 72884 + ... + 73236.

It is an arithmetic number, because the mean of its divisors is an integer number (1222893).

Almost surely, 2^25790180 is an apocalyptic number.

25790180 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 25790180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29349432).

25790180 is an abundant number, since it is smaller than the sum of its proper divisors (32908684).

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

25790180 is a wasteful number, since it uses less digits than its factorization.

25790180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 25790180 is about 5078.4032923745. The cubic root of 25790180 is about 295.4505420437.

The spelling of 25790180 in words is "twenty-five million, seven hundred ninety thousand, one hundred eighty".