25718130 has 24 divisors (see below), whose sum is σ = 66867372. Its totient is φ = 6858144.

The previous prime is 25718129. The next prime is 25718141. The reversal of 25718130 is 3181752.

It can be written as a sum of positive squares in 2 ways, for example, as 24532209 + 1185921 = 4953^2 + 1089^2 .

It is a super-2 number, since 2×25718130² = 1322844421393800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25718094 and 25718103.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142789 + ... + 142968.

Almost surely, 2^25718130 is an apocalyptic number.

25718130 is an abundant number, since it is smaller than the sum of its proper divisors (41149242).

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

25718130 is a wasteful number, since it uses less digits than its factorization.

25718130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285770 (or 285767 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 25718130 is about 5071.3045658883. The cubic root of 25718130 is about 295.1751521377.

Adding to 25718130 its reverse (3181752), we get a palindrome (28899882).

It can be divided in two parts, 2571 and 8130, that added together give a palindrome (10701).

The spelling of 25718130 in words is "twenty-five million, seven hundred eighteen thousand, one hundred thirty".